Adults

Certified protection, clean aesthetic, comfortable fit, and a budget-friendly price, that' s what makes up the Align II. The standout feature of the Align II is the inclusion of the revolutionary Multi-Directional Impact Protection System (MIPS), a patented protection against "rotational forces" caused by angled impacts. When including MIPS, we didn't give anything up to comfort though, the Align II includes our Tri-Fix web splitter, the Headset SX dial fit system for easy fit adjustment, our 4th Dimension Cooling System for incredible ventilation, and three universal shell sizes to achieve the perfect fit. If you're on the quest for a feature-rich helmet that leaves some jingle jangle in your pocket, the Align II is for you. - 4th Dimension Cooling System optimizes ventilation. - In-molded shell improves strength and reduces weight. - Reflective decals help with increased visibility in low-light conditions. - The MIPS system is a low-friction layer that allows a sliding motion of 10 to 15mm in all directions. Studies indicate that this reduces some of the rotational forces transmitted to the brain during angled impacts. - With the Specialized Tri-Fix holding your straps in place and three shell sizes, riders can achieve an easy and accurate fit that accommodates a wide range of head sizes. Add in a micro-adjustable dial for on-the-fly adjustability and you're ensured an easy, secure, and accurate fit.

When ripping down the trail, the last thing you need to worry about is if your helmet will protect you in a crash. Then again, you don't want to be stuck wearing a full-face on every trail ride. This is why we created the Ambush Comp with ANGi—a lightweight extended coverage helmet at a wallet-friendly price. Starting with protection, the Ambush Comp boasts a significant amount of extended coverage and a single density foam that's been reinforced by a Composite Matrix. The reason behind this is that it manages the energy from impacts more effectively. Even with the added protection, though, it fits comfortably with our low profile and fully integrated Mindset 360 fit system. And with its five height positions, this system provides unmatched adjustment, while an integrated dial allows for on-the-fly fine-tuning. The Ambush Comp also keeps you cool with our 4th Dimension Cooling System's massive vents and exhaust ports, so you don't have to worry about overheating—even on the hottest days. Our new ANGi Crash Sensor gives you and your loved ones peace of mind like never before—when combined with our iOS or Android app, the sensor will detect a crash and send a text message to specified contacts in your phone. It also syncs with our app and STRAVA to provide GPS-based activity tracking. Finally, we included a micro-indexing visor that quickly adjusts positions and has plenty of room for goggle storage. Combined, these features put the Ambush Comp well in front of the competition. - Composite Matrix internal reinforcement allows large vents for greater cooling. - In-molded shell improves strength and reduces weight. - Mindset 360 fit system provides a secure, comfortable fit with 360-degree tension adjustment, five height positions, and integrated dial for easy on-the-fly adjustments. - Micro indexing visor allows for a wide range of fast, secure on-trail adjustments, as well as convenient goggle storage. - 4th Dimension Cooling system optimizes ventilation. - Extended coverage for added protection and durability. - Tri-Fix web splitter for improved comfort and ease of strap adjustments. - MIPS-equipped. - Integrated ANGi crash sensor.

Premium features, certified protection, and sleek styling make the Chamonix a tremendous value for any cyclist. You'll also find that it's equipped with next-level protection courtesy of revolutionary MIPS technology (Multi-Directional Impact Protection System). - One-size system, designed for an easy and accurate fit to a wide range of head sizes - Headset SX fit system with micro-adjustable dial for an easy, secure, and accurate fit - 4th Dimension Cooling System optimizes ventilation - In-molded shell improves strength and reduces weight - Tri-Fix web splitter for improved comfort and ease of strap adjustments - Reflective webbing and decals for increased visibility to motorists in low-light conditions - Patented clip-on visor included - MIPS-equipped - Fit system is ANGi crash sensor ready

This race-inspired design is known for its incredible fit and tremendous value. It has many similar features to the S-Works Prevail, like the Tri-Fix webbing system and 4th Dimension Cooling, granting the Propero III incredible performance at a more attainable price. Our new ANGi Crash Sensor gives you and your loved ones peace of mind like never before—when combined with our iOS or Android app, the sensor will detect a crash and send a text message to specified contacts in your phone. It also syncs with our app and STRAVA to provide GPS-based activity tracking. - Integrated ANGi crash sensor - Includes a lifetime subscription to the Specialized Ride app - MIPS-equipped - Easy-adjust, HairPort FSL II fit system with four height positions and micro-adjustable dial - 4th Dimension Cooling System with Mega Mouthport for enhanced comfort - Composite matrix internal reinforcement allows larger vents for greater cooling - Soft 4X DryLite webbing material won't stretch out with sweat or water - Tri-Fix web splitter for improved comfort and ease of strap adjustments - Reflective decals for increased visibility to motorists in low-light conditions

When we set out to improve the original S-Works Prevail, we knew that we had our work cut out for us. How could we improve on the industry benchmark for fit, ventilation, and comfort? By listening to our riders—that's how. Through this, we realized that there were a few aspects of the original Prevail II that needed to be changed, with the biggest request being for a lower-sitting design. Our new ANGi Crash Sensor gives you and your loved ones peace of mind like never before. When combined with our iOS or Android app, the sensor will detect a crash and send a text message to specified contacts in your phone. It also syncs with our app and STRAVA to provide GPS-based activity tracking. We've teamed up with MIPS researchers to introduce MIPS SL—a new, ultra-light, and supremely comfortable version of MIPS that's available exclusively on Specialized helmets. With MIPS SL, we've essentially integrated MIPS technology within the helmet padding itself. MIPS SL's minimalist "watchband" attachment system provides 10 to 15 millimeters of rotation in every direction and offers the same brain protection benefits as other versions of MIPS, while also ushering in a new level of comfort and weight savings. We thought to ourselves, "thinking big shouldn't result in bigger helmets," so with the Prevail, we set out to prove that big ideas can come in smaller packages. It all starts with our patented EPS construction that relies on multi-density foam that's paired with a robotically woven, Aramid-reinforced skeleton. This comes with a reduction in the overall size, creating a smaller profile that fits lower down on the head for a better fit and safety. It also has deep internal channels that are aligned from front-to-rear, so the air intake and exhaust are optimized for unparalleled cooling over the entire head. In the Win Tunnel, we found these new designs amounted to six seconds saved over 40km when compared to a "standard" road helmet. Another standout feature of the S-Works Prevail II is the Gutter Action System that manages the flow of sweat, keeping it away from your eyes and dripping it off of the pads over your temple. In the end, the S-Works Prevail II is the most complete lightweight race helmet we've ever made-perfect for hot, mountainous rides and flat, windy sections alike. - Integrated ANGi crash sensor. - Includes a lifetime subscription to the Specialized Ride app. - New MIPS SL is the lightest, most ventilated MIPS protection to date and is exclusively available on Specialized helmets. - Patented Energy Optimized Multi-Density EPS construction helps to manage impact energy. - Patented aramid-reinforced skeleton provides internal EPS support. - Ultra-light Mindset HairPort II micro-dial fit system with height adjustability for the perfect fit. - Mega Mouthport optimizes cooling and sweat evaporation. - Aerodynamic design. - 4th Dimension Cooling System with deep internal channels, large vents, and aligned exhaust ports. - Thin, soft, and lightweight 4X DryLite webbing won't stretch out with sweat or water. - Tri-Fix web splitter for improved comfort and ease of strap adjustments. - Instrap webbing system for ultra-light construction and security. - Gutter Action brow pad design for increased comfort and sweat management.

Product Details " Protection Lightweight in-mold construction fuses the exterior shell and EPS foam for a one-piece design that's lightweight and durable. Zonal Koroyd® coverage for lightweight, energy-absorbing and ventilated impact protection MIPS® Brain Protection System reduces rotational forces caused by angled impacts to the head Select colorways offered without MIPS® system Certification: ASTM F 24, CE EN 177:27 CLASS B, CPSC, CE EN178 Fit / Integration Designed for ultimate integration with Smith goggles for maximum comfort and venting AirEvac™ ventilation system integrates with Smith goggles for fog-free lenses Adjustable dial fit for easy, on-the-go size adjustment Features Regulator climate control allows easy, one-handed vent adjustment 14 vents Removable Snapfit SL2 ear pads add warmth and are audio-chip compatible Outdoor Tech™ audio system compatible Weight (Size M, MIPS® and non-MIPS®): 16 oz / 4 g

The Fixture's confident mountain bike style and breezy ventilation combine in a compact design that complements nearly any ride -- especially when there's dirt under the tread. Some of Giro's best features, like In-Mold construction coupled with the ease and comfort of their acclaimed Roc Loc Sport fit system, offer the versatility you need to ride everything from fire-road adventures to swooping singletrack trails. The Fixture's styling and color options will keep you feeling good mile after mile. - 54 – 61cm / 21.25 – 24 in.

Giro created the Fixture XL for riders in search of the renowned Giro fit and in need of an extra-large size. Inspired by the confident mountain style and breezy ventilation of the Fixture helmet, the Fixture XL is built around many of Giro's best features, like In-Mold construction coupled with the ease and comfort of their acclaimed Roc Loc Sport fit system. - X-Large: 61 – 65cm / 24 – 25.55 in.

If you're going to wear a helmet on your Electra, wear an Electra on your helmet. - Durable ABS hardshell for protection and EPS foam liner for security - Detachable visor for when you want sun protection, velcro for when you don't - Fit retention system provides secure and snug fit - Easy to use magnetic Fidlock buckle - Size SMALL fits circumference 48cm - 54cm and hat sizes 6 1/2 - 6 3/4 - Size MEDIUM fits circumference 55cm - 58cm and hat sizes 6 7/8 - 7 1/4 - Size LARGE fits circumference 59cm - 61cm and hat sizes 7 3/8 - 7 5/8 - Small size generally fits children while medium and large sizes fit adults

Ride smart. It's a no brainer. If you're going to rock a helmet on an Electra, rock an Electra on your helmet. Choose between awesome colors and graphics that fit your style. Electra helmets: Making messy hair cool since 2016. - Durable ABS hardshell for protection and EPS foam liner for security - Size small fits circumference 48cm - 54cm and hat sizes 6 1/2 - 6 3/4 - Size medium fits circumference 55cm - 58cm and hat sizes 6 7/8 - 7 1/4 - Size large fits circumference 59cm - 61cm and 7 3/8 - 7 5/8 - Small size generally fits children while medium and large sizes fit adults - Fit System: HB-80 - Pad Material: Moisture-wicking pads - Buckle Type: Standard buckle

An off-road helmet with WaveCel technology that balances comfort and performance for trail riders who value safety. A major advancement in the protection against cycling-related head injuries Rally WaveCel is a high-style, high-value off-road helmet with trail-specific features and WaveCel, a leading technology in the protection against cycling-related head injuries. WaveCel is a collapsible cellular structure that lines the inside of the helmet. This Bontrager-exclusive technology disrupts the safety standards the industry has accepted for over 30 years. Product details - WaveCel advanced helmet technology - Virginia Tech 5 STAR rating - BOA Fit System lets you easily secure and adjust your helmet fit with one hand - Adjustable visor offers multiple coverage options - Extended back-of-helmet shell offers additional rear protection - LockDown dividers make helmet strap management clean and easy to adjust - Soft, comfortable, moisture-wicking, and washable helmet pads - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership Specifications - Size (head circumference): Small (51-57cm) / Medium (54-60cm) / Large (58-63cm) - Fit system: Boa - Pad material: Moisture-wicking pads - Buckle type: Standard buckle - Includes: Crash Replacement Guarantee - Weight: 360g (Small) / 400g (Medium) / 430g (Large)

Take your protection to the next level. Bontrager Specter WaveCel offers the best in versatility and comfort for everyday rides on roads, trails, gravel, and more. From dirt to pavement, fast or slow, this new wave of protection delivers the confidence you need anywhere you ride or race. WaveCel is a collapsible cellular structure that lines the inside of the helmet. This Bontrager-exclusive technology disrupts the safety standards the industry has accepted for over 30 years. - WaveCel advanced helmet technology - The Boa System lets you easily secure and adjust helmet fit with just one hand - Fidlock magnetic buckle fastens effortlessly for a quick, secure fit - Highly ventilated design offers more airflow to keep you cool - Soft, comfortable, moisture-wicking, and washable helmet pads - Reflective elements on back of helmet offer enhanced visibility to be seen - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership Sizing: - Small: 51-57cm - Medium: 54-60cm - Large: 58-63cm

At home on the dirt or in the streets, the Bell Local blends classic skate style looks with new-school comfort and technology. The re-tuned shape fits closer and looks smaller, and the Local adds a cycling-style Fit System to a street helmet for a more secure fit. Hit the pump track, shred some vert, or rock it while you’re riding around town. For comfort and style, keep it Local.

At just 850 grams, the Sanction is our low-profile full-face helmet aimed at dirt shredders and BMX riders who don’t need the more robust Full-9 or Transfer-9. The Sanction has become the choice of adults who want full-face protection but prefer a smaller size and profile. If you’re riding a chairlift, go with a Full-9 or Transfer-9. But if you’re pedaling BMX or dirt jumps, this helmet will serve you well.

At just 850 grams, the Sanction is Bell's low-profile full-face mountain bike helmet aimed at dirt shredders and BMX riders who don’t need the more robust Full-9 or Transfer-9. The Sanction has become the choice of adults who want full-face protection but prefer a smaller size and profile. If you’re riding a chairlift, go with a Full-9 or Transfer-9. But if you’re pedaling BMX or dirt jumps, this helmet will serve you well.

When ripping down the trail, the last thing you need to worry about is if your helmet will protect you in a crash. Then again, you don't want to be stuck wearing a full-face on every trail ride. This is why we created the Ambush with ANGi, the lightest and most ventilated extended coverage helmet available. Our new ANGi Crash Sensor gives you and your loved ones peace of mind like never before—when combined with our iOS or Android app, the sensor will detect a crash and send a text message to specified contacts in your phone. It also syncs with our app and STRAVA to provide GPS-based activity tracking. We've teamed up with MIPS researchers to introduce MIPS SL—a new, ultra-light, and supremely comfortable version of MIPS that's available exclusively on Specialized helmets. With MIPS SL, we've essentially integrated MIPS technology within the helmet padding itself. MIPS SL's minimalist "watchband" attachment system provides 10 to 15 millimeters of rotation in every direction and offers the same brain protection benefits as other versions of MIPS, while also ushering in a new level of comfort and weight savings. Starting with protection, the Ambush boasts a significant amount of extended coverage, Energy Optimized Multi-Density EPS foam that manages the energy from impacts effectively, and an Aramid-Reinforced Skeleton that provides extra structure for the foam. Even with the added protection, though, it fits comfortably with our low profile and fully integrated Mindset 360 fit system. With its five height positions, this system provides unmatched adjustment, while an integrated dial allows for on-the-fly tinkering. The Ambush also keeps you cool with our 4th Dimension Cooling System's massive vents and exhaust ports, so you don't have to worry about overheating—even on the hottest days. Finally, we included a micro-indexing visor that quickly adjusts positions and has plenty of room for goggle storage. Combined, these features put the Ambush well in front of the competition. - Integrated ANGi crash sensor. - Includes a lifetime subscription to the Specialized Ride app. - New MIPS SL is the lightest, most ventilated MIPS protection to date and is exclusively available on Specialized helmets. - Patented aramid-reinforced skeleton provides internal EPS support. - Patented Energy Optimized Multi-Density EPS construction helps to manage impact energy. - Mindset 360 fit system provides a secure, customizable fit with 360-degree tension adjustment, five height positions, and an integrated dial for easy, on-the-fly adjustments. - Micro indexing visor allows for a wide range of fast, secure on-trail adjustments, as well as convenient goggle stowage. - 4th Dimension Cooling System with massive vents, internal Cross-Channels, and aligned exhaust ports increases airflow to keep you cool. - Low profile in-molded shell with smooth, snag-free exterior shape. - Extended coverage for added protection and durability. - Lightweight, quick-drying liner features a Gutter Action Brow that channels moisture away from eyes. - Tri-Fix web splitter for improved comfort and ease of strap adjustments.

With a sleek and fast look, the Echelon helmet presents a compact profile on a rider's head. And with increased ventilation and an ergonomic design, you're guaranteed an exceptional fit, tremendous comfort, and ample ventilation. Accordingly, it's the ideal helmet for road cycling enthusiasts. - Easy-adjust Headset SL II fit system with six height positions and micro-adjustable dial - 4th Dimension Cooling System optimizes ventilation - Composite matrix internal reinforcement allows larger vents for greater cooling - Tri-Fix web splitter for improved comfort and ease of strap adjustments - Reflective decals for increased visibility to motorists in low-light conditions - MIPS-equipped - Fit system is ANGi crash sensor ready

With a sleek and fast look, the Echelon helmet presents a compact profile on a rider's head. And with increased ventilation and an ergonomic design, you're guaranteed an exceptional fit, tremendous comfort, and ample ventilation. Accordingly, it's the ideal helmet for road cycling enthusiasts. - 4th Dimension Cooling System optimizes ventilation. - Composite matrix internal reinforcement allows larger vents for greater cooling. - Easy-adjust Headset SL II fit system with six height positions and micro-adjustable dial. - Fit system is ANGi crash sensor ready. - MIPS-equipped. - Reflective decals for increased visibility to motorists in low-light conditions. - Tri-Fix web splitter for improved comfort and ease of strap adjustments.

If you push the limits of downhill speed and big air, the S-Works Dissident with ANGi is for you. That's because it's the lightest, most-ventilated, and technically advanced carbon fiber full-face mountain bike helmet out there. To help make sure of it, our 3D sculpted cheekpads and 4th Dimension Cooling System keeps things airy in the heat, while the Carbon Matrix shell keeps it light enough for all-day comfort. Our new ANGi Crash Sensor gives you and your loved ones peace of mind like never before—when combined with our iOS or Android app, the sensor will detect a crash and send a text message to specified contacts in your phone. It also syncs with our app and STRAVA to provide GPS-based activity tracking. - Engineered to protect World Cup downhill and gravity riders - Meets the ASTM DH safety testing standards for impact protection and chin bar performance - Lightweight Carbon Matrix shell-target weight 1000g - 3D-sculpted cheek pads and updated crown pad design for improved ventilation and a more comfortable secure fit - 4th Dimension Cooling System and ventilation provides superior comfort - Magnetic chin strap buckle improves comfort and allows for easy, one-handed use - Helmet EJECT system compatible - Leatt brace compatible - Speaker compatible - Includes a padded travel bag with micro-fleece liner and external goggle pocket - Removable washable liner and cheek pads - MIPS-equipped - Integrated ANGi crash sensor

The new S-Works Prevail II Vent is the next evolution in our Cooler Heads Prevail approach to helmet design. By taking our S-Works Prevail II and increasing the total vent surface area by 20%, we've developed a whole new category of ventilated helmets. This increase in vent surface area has allowed us to more than double the cooling capacity of the new Prevail II Vent compared to the original Prevail II. So, even on the hottest climbs in the most humid conditions, you can grind away, assured that the S-Works Prevail II Vent is keeping you cool and performing your best. - Our ANGi Crash Sensor gives you and your loved one' peace-of-mind like never before. When combined with our iOS or Android app, the sensor will detect a crash and send a text message to specified contacts in your phone. It also syncs with our app and STRAVA to provide GPS-based activity tracking. Your new helmet even includes a lifetime subscription to the Specialized Ride app. - Our ultralight and supremely comfortable version of MIPS (MIPS SL) has only gotten better. We've added perforations, along with a ripstop mesh to maximize breathability and performance. With MIPS SL, we've essentially integrated MIPS technology within the helmet padding itself. MIPS SL's minimalist watchband attachment system provides 10 to 15 millimeters of rotation in every direction and offers the same brain protection benefits as other versions of MIPS, while also ushering in a new level of comfort and weight savings. - Patented Energy Optimized Multi-Density EPS construction helps to manage impact energy. - The new 5th Dimension Cooling System, with its redesigned, patented, carbon fiber and aramid-reinforced skeleton, provides internal EPS support, allowing for large vents with deep internal channels and aligned exhaust ports, all adding up to double the cooling capacity and a 20% increase in total vent size. These same features that bring you unprecedented cooling also amount to six seconds saved over 40km in the Win Tunnel when compared to a standard road helmet. Additionally, the new updated, perforated MIPs SL pad kit keeps moisture moving and allows for even more breathability. - Thin, soft, and lightweight 4X DryLite webbing won't stretch out with sweat or water. - Tri-Fix web splitter improves comfort and ease of strap adjustments, while an in-strap webbing system delivers ultralight construction and security. - Ultralight Mindset HairPort II micro-dial fit system with height adjustability for the perfect fit.

When we set out to improve the original S-Works Prevail, we knew that we had our work cut out for us. How could we improve on the industry benchmark for fit, ventilation, and comfort? By listening to our riders—that’s how. Through this, we realized that there were a few aspects of the original Prevail II that needed to be changed, with the biggest request being for a lower-sitting design. We thought to ourselves, "thinking big shouldn't result in bigger helmets," so with the Prevail, we set out to prove that big ideas can come in smaller packages. It all starts with our patented EPS construction that relies on multi-density foam that's paired with a robotically woven, Aramid-reinforced skeleton. This comes with a reduction in the overall size, creating a smaller profile that fits lower down on the head for a better fit and safety. It also has deep internal channels that are aligned from front-to-rear, so the air intake and exhaust are optimized for unparalleled cooling over the entire head. And in the Win Tunnel, we found these new designs amounted to six seconds saved over 40km when compared to a "standard" road helmet. Another standout feature of the S-Works Prevail II is the Gutter Action System that manages the flow of sweat, keeping it away from your eyes and dripping it off of the pads over your temple. Our new ANGi Crash Sensor gives you and your loved ones peace of mind like never before—when combined with our iOS or Android app, the sensor will detect a crash and send a text message to specified contacts in your phone. It also syncs with our app and STRAVA to provide GPS-based activity tracking. In the end, the S-Works Prevail II is the most complete lightweight race helmet we've ever made—perfect for hot, mountainous rides and flat, windy sections alike. - Patented Energy Optimized Multi-Density EPS construction helps to manage impact energy - The patented aramid-reinforced skeleton provides internal EPS support - Ultra-light Mindset HairPort II micro-dial fit system with height adjustability for the perfect fit - Mega Mouthport optimizes cooling and sweat evaporation - Aerodynamic design - 4th Dimension Cooling System with deep internal channels, large vents, and aligned exhaust ports - Thin, soft, and lightweight 4X DryLite webbing won't stretch out with sweat or water - Tri-Fix web splitter for improved comfort and ease of strap adjustments - Instrap webbing system for ultra-light construction and security - Gutter Action brow pad design for increased comfort and sweat management - Reflective decals for increased visibility to motorists in low-light conditions - Patented clip-on visor included - MIPS-equipped - Integrated ANGi crash sensor

When time is of the essence, no other helmet will get you from start to finish faster than the S-Works TT. In order to create the fastest TT helmet out there, we turned to the design of the S-Works McLaren TT to make a helmet that truly differentiates itself from the "competition." The biggest innovation found on the S-Works TT is the patented Gill Vents that pull air into the helmet and allow it to freely flow out of the rear exhaust port. This makes for a time trial helmet that's not only fast (62 seconds over 40 kilometers compared to a standard road helmet to be exact), but will also keep you cool on the course. - Advanced, wind-tunnel-developed aerodynamics and ventilation save 62 seconds over 40km compared to a standard road helmet - Patented Energy Optimized Multi-Density EPS construction helps to manage impact energy - Ultra-light Mindset micro-dial fit system with height adjustability for the perfect fit - Innovative Gill Vent design improves airflow and reduces drag - Removable Shield has a robust snap fit and comes with both clear and smoked tints - Thin, soft, and lightweight 4X DryLite webbing won't stretch out with sweat or water - Tri-Fix web splitter for improved comfort and ease of strap adjustments - Instrap webbing system for ultra-light construction and security - MIPS-equipped - Fit system is ANGi crash sensor ready

The Serfas Metro features clean modern style with large cooling vents, forward-facing sun visor, Posi-Fit adjustment dial, and integrated rear-facing LED safety light paired with high-visibility reflective silver accents. - Built-In Rear Safety Light - In-Mold Construction - CPSC Certified (Consumer Product Safety Commission) - Easy Adjustable Straps - Removable Visor - Posi-Fit Dial Adjustment System - Integrated Bug Net: - Weight: 300 Grams - Vent count: 12 - Sizes: S/M 54-58cm, L/XL 58-62cm

Safety & Style. Protection With Panache. - Built-in rear safety light - In-mold construction - CPSC certified - Easily adjustable straps - Removable visor - Easy-to-adjust fit system - Integrated bug net - Vent count: 12 - Weight: 300 grams - Sizes: S/M 54-58cm, L/XL 58-62cm

The Serfas Kilowatt is E-Bike certified and features adjustable venting which be can be opened or closed depending on how much air flow you want, also a built-in rear LED safety light for added visibility with additional reflective design accents, and an easy-to-adjust fit system. - Tested and Certified to NTA 8776 E-Bike Helmet Standards - Adjustable Top Vents (Slide Open/Close) - Built-In Rear Light - Rear-Facing Reflective Accents - Adjustable Straps - Easy-To-Adjust Fit System (Rear Knob) - Weight: 484 Grams - Vent Count: 8 - Sizes: S/M (54-58cm), L/XL (58-61cm)

The Serfas Incline Enduro is designed with lots of ventilation (18 vents) to help keep air flowing and make sure you stay nice and cool. In-mold construction provides strong impact protection while adjustable straps and rear easy-to-adjust fit system knob makes sure your helmet stays properly snug. - Enduro Fit - In-Mold Construction - Adjustable Straps - Removable Visor - Easy-To-Adjust Fit System (Rear Knob) - Integrated Bug Net - Vent Count: 18

Giro's Aerohead MIPS takes the same wind-cheating silhouette as the leading-edge Aerohead Ultimate, but adds increased ventilation to keep triathletes and time trialists cool when the competition is hot. By using a polycarbonate shell, Wind Tunnel ventilation, and internal channeling, this helmet is proven to boost cooling power while remaining aerodynamic. Additionally, Aerohead MIPS features a wrap-around eye shield that offers an impressive field of view with the convenience of a magnetic anchor attachment to allow easy storage of the lens in the "flipped up" position—perfect for fast swim-to-bike transitions.

The Aether MIPS combines airy, open design with a revolution in rotational energy management to advance head protection for cyclists. Inside the Aether, a dual-density EPS foam liner helps to manage a wide range of impact energies, while also boasting deep internal channeling to provide cooling airflow. Giro's proprietary MIPS Spherical technology is integrated between the layers of EPS foam – instead of against the rider’s head – giving riders the benefits of MIPS without any obstruction to comfort or cooling power. Outside, a sleek 6-piece shell forms a stunning silhouette around the massive vents, which get added structural reinforcement via a shatter-resistant AURA reinforcing arch. The final touch is Giro's Roc Loc 5+ Air fit system, featuring 3-way fit tuning, that allows easy adjustment in seconds for the ultimate in comfort.

When you hit the road for your morning commute or weekend errand run, you need a helmet that will keep you comfortable, looking good, and feeling confident. Look no further than the Bexley MIPS. The compact shape of the Bexley MIPS doesn't overwhelm your personal style yet still provides extended coverage, and the plush, anti-microbial padding helps keep the helmet fresh and comfortable throughout the seasons. A retractable and replaceable shield in Grey/Silver Flash protects your eyes from wind and glare, especially during higher-speed commutes on an e-bike, and the integrated rear light makes the entire back panel of the helmet glow for substantially increased visibility on the road. The Roc Loc City Air system provides superior fit and ventilation, while four large adjustable vents provide plenty of cooling power for your urban adventures. And of course, the Bexley MIPS is equipped with the Multi-Directional Impact Protection System, which can provide more protection in certain impacts. - Wind tunnel vents with internal channeling - Deep internal channels with 4 closable upper vents - 10 vents, four with adjustable wind tunnel ventilation - CPSC bicycle certification - Hybrid in mold construction - Extended coverage - Roc Loc City Air fit system

Giro created the Bronte MIPS for riders in search of the renowned Giro fit and in need of an extra-large size. Inspired by the sleek style and cooling ventilation of the Register helmet, the Bronte MIPS is at home on pavement or the trail. In-Mold construction is used to make it light without compromising durability, and the acclaimed, adjustable Roc Loc Sport MIPS system makes it easy to custom-tune the fit for comfort and stability. An integrated Multi-Directional Impact Protection System, which can redirect energy and provide more protection in certain impacts, ensures that you get the latest in head protection technology.