Helmets

The Fixture MIPS brings confident mountain bike style and breezy ventilation together in a compact design that complements nearly any ride -- especially when there's dirt under 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 Roc Loc also is seamlessly integrated with the Multi-Directional Impact Protection System (MIPS), which can redirect energy and provide more protection in certain impacts.

All-new design with improved fit and MIPS protection gives cyclists of all ages and experience a reason to ride. - Designed with fit and function in mind to create a value-oriented helmet packed with features - Transtextura Plus anti-microbial padding helps fight bacteria growth by pulling sweat from a rider’s head and transferring it through the airflow exhaust ports - Low and high-speed impact-tuned construction with optimized low-density eps, and an ultra-thin toughened polycarbonate shell - New Cinch One fit system offers optimal coverage by cradling the occipital bone for full protection, support and comfort, and an easy dial function - Removable visor - Weight: 335g (size M/L) - Certifications: CPSC/CE

When it's time to hit the road, the Agilis MIPS offers a sporty, sleek style with comfortable features you can count on, including 32 wind tunnel vents, Coolfit anti-microbial padding, and integrated MIPS technology. The fit on the Agilis MIPS is comfortable and secure thanks to our adjustable Roc Loc 5.5 MIPS system that combines fit and positioning adjustments while integrating with MIPS technology for an added measure of protection in the event of an angled impact. The outer Hardbody shell extends to the inside of the helmet, and is molded from a tough polycarbonate thats fused permanently to the EPS foam liner using our In-Mold process to enhance durability and ventilation without excess bulk. - 32 Wind tunnel vents with internal channeling - Full-wrap in-mold polycarbonate shell with EPS liner - Coolfit anti-microbial padding - Featherweight webbing with Slimline buckle - Roc Loc 5.5 MIPS fit system

There's no reason to skimp on comfort and protection while trying to maintain a budget. The Formula benefits from the same technologies that make Bell's road helmets such champions of comfort and safety. This model features the MIPS impact management as well as Bell's Float Fit retention system and innovative Sweat Guide liner. Elegant shape, fluid aerodynamics and ample ventilation ensure the Formula's place as a classy all-rounder. Specs - MIPS-equipped: MIPS stands for Multi-Directional Impact Protection System, which is a leading slip-plane technology inside the helmet designed to reduce rotational forces that can result from certain impacts. - Construction: Fusion in-mold polycarbonate shell - a process pioneered by Bell bonds the helmet's outer shell to the EPS foam liner to create a sturdier helmet. - Number of vents: 19 - Interior/liner type: Sweat guide pad design pulls moisture away from the brow pad and away from eyewear - Fit system: Float fit - a minimalist, lightweight fit system with an easy-to-turn rubber overmolded dial for adjustments (integrated with MIPS) - Product weight: 285 grams (size M) - Small = 52 – 56cm - Medium = 55 – 59cm - Large/X-Large = 58 – 62cm

Bell have worked tirelessly to refine the fit of its helmets so that they represent the pinnacle of comfort. This philosophy starts with the flagship Z20 and extends throughout the range. The Falcon represents the same attention to fit and finish that defines quality. It utilizes integrated MIPS, offering comprehensive energy management as well as allowing for a sleeker, more compact overall design. Multi-adjustable Float Fit retention and Bell's unique Sweat Guide further enhance fit, while generous vents and wind-cheating aerodynamics provide ample airflow to keep things cool. The Falcon is the easy choice for all roads, wherever they may lead. - 18 vents - Compliance: CPSC bicycle - MIPS-equipped - MIPS stands for Multi-directional Impact Protection System, which is a leading slip-plane technology inside the helmet designed to reduce rotational forces that can result from certain impacts. - Construction: Fusion in-mold polycarbonate shell - a process pioneered by Bell bonds the helmet's outer shell to the EPS foam liner to create a sturdier helmet. - Lightweight internal polycarbonate roll cage - Fit System: Float fit - a minimalist, lightweight fit system with an easy-to-turn rubber overmolded dial for adjustments (integrated with MIPS) - Retention System: No-twist tri-glides: quick-adjust fasteners that help keep straps flat and properly positioned - Interior: Sweat guide pad design pulls moisture away from the brow pad and away from eyewear - Rear reflective strip - 297 grams (size M)

The Foray drafts off the bold design language of our premium Synthe helmet, and offers many of our key features including durable In-Mold Construction and the Roc Loc 5 fit system with two-way fit adjustment. The slim design is very light, offers great ventilation and is available in three Super Fit sizes so that you can get a helmet that looks, fits and feels like it was made for you.

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.

There's no reason to skimp on comfort and protection while trying to maintain a budget. The Formula benefits from the same technologies that make Bell's road helmets such champions of comfort and safety. This model features the MIPS impact management as well as Bell's Float Fit retention system and innovative Sweat Guide liner. Elegant shape, fluid aerodynamics and ample ventilation ensure the Formula's place as a classy all-rounder. Specs - MIPS-equipped: MIPS stands for Multi-Directional Impact Protection System, which is a leading slip-plane technology inside the helmet designed to reduce rotational forces that can result from certain impacts. - Construction: Fusion in-mold polycarbonate shell - a process pioneered by Bell bonds the helmet's outer shell to the EPS foam liner to create a sturdier helmet. - Number of vents: 19 - Interior/liner type: Sweat guide pad design pulls moisture away from the brow pad and away from eyewear - Fit system: Float fit - a minimalist, lightweight fit system with an easy-to-turn rubber overmolded dial for adjustments (integrated with MIPS) - Product weight: 285 grams (size M) - Small = 52 – 56cm - Medium = 55 – 59cm - Large/X-Large = 58 – 62cm

The Quarter is one of the lowest-profile helmets we've ever made, and it's also the lightest we've made with an ABS shell. The essentials are here—an EPS liner for impact management, a tough outer shell, riveted webbing anchors, and plush, sweat absorbent pads that are easy to swap for dialing in the fit. Another standout feature—the polyurethane coating—helps to protect the EPS liner from daily wear and tear. Plus it's available in a bunch of great colors and three Super Fit sizes.

The Radix MIPS helmet combines rugged style and durability to meet the demands of core trail riders, with the coverage, lightweight, and ventilation riders need to ride comfortably and confidently, all day. The Radix MIPS helmet is for the rugged adventurer who appreciates a perfect fit, the sun staying out of their eyes, and plenty of ventilation. The highly adjustable Roc Loc 5.5 MIPS system allows you to customize fit and feel for enhanced stability and long-range comfort while providing an added measure of protection from rotational forces in the event of an angled impact. The P.O.V. Visor offers 15 degrees of adjustment, and the tough polycarbonate outer shell is fused permanently to the EPS foam liner using our in-mold construction process, to enhance durability and ventilation without excess bulk. - Construction: Full-wrap in-mold polycarbonate shell with EPS liner - Sport: Cycling - Number of vents: 25 - Ventilation type: Wind tunnel vents with internal channeling - Fit system: Roc Loc 5.5 MIPS

Commuting by bike can be exhilarating yet challenging, and Daily LED MIPS is designed to help empower your mission with its 20-lumen rechargeable rear LED light. Light Up Your Commute Commuting by bike can be exhilarating yet challenging, and Daily LED MIPS is designed to help empower your mission. Our 20-lumen rear LED light is unobtrusive, highly visible, rechargeable via micro-USB, and built into our proprietary Integrated MIPS Ergo Fit system. Add in comfort features—including a stylish soft brim and No-Twist Tri-Glides for easy strap adjustment—and the Daily LED MIPS gives you the tools you need for a smooth commute. [Availability, certification, color, and pricing may vary per region. If outside of the USA, please check with your authorized local dealer for more information.] - INTEGRATED MIPS—Integrated MIPS (Multi-Directional Impact Protection System) is designed to reduce rotational forces that can result from certain impacts. By integrating the MIPS slip plane into the retention system, we are able to reduce complexity and weight for a compact, better ventilated helmet that fits more closely to the head. - ERGO FIT LED—20-Lumen rear LED integrated into the easy dial fit system. Unobtrusive, highly visible, and easily rechargeable (includes micro USB). Increase your visibility. - NO-TWIST TRI-GLIDES—Quick-adjust fasteners that help keep straps flat and properly positioned - SWEAT GUIDE—Sweat Guide pad design pulls moisture away from the brow pad and away from eyewear. Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older

- Designed with fit and function in mind to create a value-packed helmet to keep young cyclists comfortable and protected - TransTextura Plus anti-microbial padding helps fight bacteria growth and reduce odors - Low and high speed impact-tuned construction with optimized low-density EPS - New Cinch Jr. fit system offers optimal coverage by cradling the head for full protection - Integrated foam visor

Commuting by bike can be exhilarating yet challenging, and Daily LED is designed to help empower your mission. Our 20-lumen rear LED light is unobtrusive, highly visible, rechargeable via micro-USB, and built into our proprietary integrated MIPS Ergo Fit system. Add in comfort features — including a stylish soft brim and No-Twist Tri-Glides for easy strap adjustment — and the Daily LED MIPS gives you the tools you need for a smooth commute. Specs - MIPS (Multi-directional Impact Protection System) - a leading slip-plane technology designed to reduce rotational forces that can result from certain impacts. By integrating the mips slip plane into the retention system, we are able to reduce complexity and weight for a compact, better ventilated helmet that fits more closely to the head. - Lithium battery packaged: in product - Number of batteries: 1 - Chemical composition: stainless steel lithium - Construction: Fusion in-mold polycarbonate shell - a process pioneered by Bell bonds the helmet's outer shell to the EPS foam liner to create a sturdier helmet. - 14 vents - Compliance: CPSC bicycle - Fit System: Ergo fit LED - sleek, easy-to-use dial system for one-handed adjustments (integrated with MIPS layer) - Retention System: No-twist tri-glides: quick-adjust fasteners that help keep straps flat and properly positioned - Interior: Sweat guide pad design pulls moisture away from the brow pad and away from eyewear - Lighting: 20-lumen rechargeable LED built into the rear of the helmet - Compliance: CPSC bicycle - Retention System: No-twist tri-glides: quick-adjust fasteners that help keep straps flat and properly positioned - Lighting: 20-lumen rechargeable LED built into the rear of the helmet - Universal Adult = 54 – 61cm - Universal Women = 50 – 57cm

The Scamp is packed with amazing features, including some of the same elements found in Giro's best adult helmets, all in a smaller package designed to fit your child. The all new Roc Loc Jr. fit system with pinch-guard buckle provides an easy way to fit your kid’s helmet quickly and securely. With a wide size range, your child can use this helmet as they grow from balance bikes to training wheels. The design is inspired by the adults’ Montaro/ Montara, and since the Scamp is available in a range of kid-friendly colors and designs, your child will be excited to wear it every time they ride.

Versatile Adventure. All-new design with improved fit gives cyclists of all ages and types of riding a reason to ride. Features - Designed with fit and function in mind to create a value-oriented helmet packed with features - TransTextura Plus anti-microbial padding helps fight bacteria growth by pulling sweat from a rider’s head and transferring it through the AirFlow exhaust ports - Low and high speed impact-tuned construction with optimized low-density EPS, and an ultra-thin toughened polycarbonate shell - New Cinch ONE fit system offers optimal coverage by cradling the occipital bone for full protection, support and comfort and an easy dial function - Removable visor - Weight: 335g (size M/L) - Certifications: CPSC/CE;AS/NZS

The Register MIPS helmet combines sleek design and lightweight construction to match your style, on the road or trail. Made in a comfortable Universal Fit size with Giro's convenient Roc Loc Sport fit system, the Register MIPS adjusts with a simple turn of the dial so you can tune the fit in seconds. A range of colors lets you choose exactly how your on-bike style comes together. Register MIPS models also have an integrated Multi-Directional Impact Protection System, which can redirect energy and provide more protection in certain impacts.

The Verce MIPS is Well Equipped to Help You Blaze New Trails. Our Roc Loc Sport Systems allows you to quickly and easily dial in your fit and the plush Quick Dry Padding provides a comfortable feel. The Verce MIPS also features an integrated Multi-directional Impact Protection System (MIPS), which can redirect energy and provide more protection in certain impacts. Integrated MIPS (Multi-directional Impact Protection System) - Allows you to customize fit/feel for great stability and long-range comfort while providing an added measure of protection from rotational forces in the event of an angled impact - Reflectivity: Reflectivity - Construction: In Mold Construction - Full Hardbody Shell - Shell Type: Polycarbonate Shell - Sport: Cycling - Visor: Removable Visor - Number of Vents: 18 - Interior/liner Type: Extra-plush Padding - Gender: Womens - Fit System:roc Loc Sport MIPS - Impact Liner Type: Eps - Certification: CPSC Bicycle

Winning pedigree. Inspired by champions. Designed for everyday road riding performance, the all-new Rev Comp follows in the footsteps of the pro-level Rev, a favorite among WorldTour riders including Giro d’Italia champion Tom Dumoulin. This all-rounder introduces some new features to optimize its comfort, protection and versatility. It has 14 vents to maximize airflow, a Cinch Pro fit system for quick and comfortable fit adjustment, and is available with MIPS to offer added impact protection. Other features include integrated magnetic light mounts for riding in low-light conditions or at night. Features - AirFlow 14-vent cooling system is enhanced by three large center vents that pull air through the helmet and over the rider’s head to keep them cool - In-mold Polycarbonate (PC) shell with lightweight EPS foam provides maximum protection without compromising comfort - Lightweight, comfortable LiteForm webbing wraps around the head for a secure and comfortable fit. It’s also hydrophobic so it won’t absorb sweat or stretch out - Locking cam buckles keep the LiteForm webbing anchored securely - TransTextura Plus anti-microbial padding helps fight bacteria growth by pulling sweat from a rider’s head and transferring it through the AirFlow vents. The natural property of the fabric inhibits microbes that cause odors - Cinch Pro fit system offers optimal coverage by cradling the occipital bone for full protection, support and comfort - Numen+ Link TL magnetic mount integration - MIPS Brain Protection System optimized design

The Giro Cinder MIPS provides all the features an avid road rider wants in a lightweight package. The design is inspired by the classic aesthetic of their premium Synthe helmet, offering similar performance and style. Key features include the Roc Loc 5 fit system, which allows you to easily dial in fit tension and adjust vertical position with a single hand. Air-FX padding offers comfort on your longest rides, and the helmet is equipped with MIPS to redirect impact energy, providing more protection in certain impacts.

The Saga MIPS drafts off the bold design language of Giro's premium Synthe helmet, and offers many of their key features including durable In-Mold construction and the Roc Loc 5 fit system with two-way fit adjustment. The slim design is light, offers great ventilation, and is available in two Super Fit sizes so that you can get a helmet that looks, fits, and feels like it was made for you. Saga MIPS models are available with the Multi-Directional Impact Protection System. MIPS can redirect energy and provide more protection in certain impacts.

An updated classic. Already one of our most popular trail helmets of all time, the Women's Montaro MIPS II W now benefits from the Roc Loc 5 Air MIPS System. This sleek design integrates 2-way fit and stability adjustment with the MIPS brain protection system for an added measure of protection from rotational forces without excess plastic against your skin. The helmet's compact shape offers deep coverage and an in-mold hardbody shell for enhanced durability without excess weight. In addition to advanced brain protection, the Women's Montaro II W is outfitted with IONIC+ padding with permanent antimicrobial performance plus 16 vents with internal channeling to keep you cool and comfortable. We also built in all of the features you need for great fit with goggles, including strap grippers on the back of the helmet and our patented P.O.V. Plus visor that allows you to lift the visor and place your goggles on the front of the helmet when your run is done. A clever breakaway interface for your favorite light or camera is included, too.

Giro design, and high-performance innovation for core road cyclists, gravel enthusiasts, and adventure riders. Advanced Performance for the Adventurous The heart of the Helios's extraordinary design and performance is Spherical Technology, which utilizes a ball-and-socket design powered by MIPS, the market-leading brain protection system that can help to reduce rotational forces. Spherical Technology allows the helmet's outer liner to rotate around the inner liner during a crash, and also allows Progressive Layering of the inner and outer liners to provide more comprehensive protection and performance. In addition to advanced head protection, the Helios's 15 Wind Tunnel vents provide exceptional cooling power that's enhanced by our patented Roc Loc 5 Air fit system and plush, antimicrobial XT2 padding for exceptional sweat absorption. It's the ideal match for your road and gravel adventures. Specs: - Impact Management: Spherical Technology, Powered By Mips - Construction: Independent, in-mold liners with spherical ball-and-socket design, Polycarbonate Shell, Hardbody Lower Shell - Ventilation:15 wind tunnel vents with internal channeling - Fit System: Roc Loc 5 Air - Weight: 270 (Size Medium CPSC, CE) - Certification: Complies with the US CPSC Safety Standard for bicycle helmet for persons age 5 and older E.U.: CE EN1078 - Highlights: Nanobead EPS Foam, Coolfit Antimicrobial Padding, Slimline Webbing, Four-piece shell w/lower hardbody

Tackle new trails. With authentic off-road style and a comfortable fit, this new helmet delivers it all for aspiring adventurers. Features - Created for the off-road enthusiast seeking performance features but with budget in mind - Trail-specific design with extended rear coverage - AirFlow ventilation system with deep internal AirFlow channels for cooling - Cinch Pro fit system offers optimal coverage by cradling the occipital bone for full protection, support and comfort - Removable, moto-style extended protection side-snap visor - Integrated magnetic mount for the Numen+ Link taillight and GoPro compatible mounting surface - MIPS mimics the brain's own protection system by adding a low friction layer between the head and the helmet, reducing rotational violence that causes strain to the brain at angled impacts

Mountain biking is a demanding sport — compromises and shortcuts when it comes to gear are never a good idea. The 4Forty is built to withstand the rigors of a trail-riding life with generous ventilation, the comfort of Float Fit and built-in Sweat Guide, extended rear coverage, a full hard shell, adjustable visor and integrated MIPS protection. Boasting the comfort, protection and broadly capable features of helmets costing twice as much, the 4Forty is a bantamweight, all-conditions, all-kinds-of-trail champion packing a heavyweight value. Specs - MIPS stands for Multi-directional Impact Protection System, which is a leading slip-plane technology inside the helmet designed to reduce rotational forces that can result from certain impacts. - Construction: Fusion in-mold polycarbonate shell - a process pioneered by Bell bonds the helmet's outer shell to the EPS foam liner to create a sturdier helmet. - Goggle-guide adjustable visor: accommodates both goggles and glasses - Number of vents: 15 - Interior/liner type: Sweat guide pad design pulls moisture away from the brow pad and away from eyewear - Fit system: Float Fit - a minimalist, lightweight fit system with an easy-to-turn rubber overmolded dial for adjustments (integrated with MIPS) - Weight 380 grams (size M) - Certification: complies with the US CPSC safety standard for bicycle helmet for persons age 5 and older - Small = 52 – 56cm - Medium = 55 – 59cm - Large = 58 – 62cm - X-Large = 61 – 65cm

An updated classic. Already one of our most popular trail helmets of all time, the Montaro MIPS II now benefits from the Roc Loc 5 Air MIPS System. This sleek design integrates 2-way fit and stability adjustment with the MIPS brain protection system for an added measure of protection from rotational forces without excess plastic against your skin. The helmet's compact shape offers deep coverage and an in-mold hardbody shell for enhanced durability without excess weight. In addition to advanced brain protection, the Montaro II is outfitted with IONIC+ padding with permanent antimicrobial performance plus 16 vents with internal channeling to keep you cool and comfortable. We also built in all of the features you need for great fit with goggles, including strap grippers on the back of the helmet and our patented P.O.V. Plus visor that allows you to lift the visor and place your goggles on the front of the helmet when your run is done. A clever breakaway interface for your favorite light or camera is included, too.

Go big in the Fixture MIPS XL Helmet, made specifically for riders in need of an extra-large size who want breezy ventilation, the ease of the Roc Loc Sport fit system, and confident style. Inspired by the confident mountain style and breezy ventilation of our Fixture helmet, the Fixture MIPS XL is built around many of our best features, like In-Mold construction coupled with the ease and comfort of our acclaimed Roc Loc Sport fit system. Meanwhile, a seamlessly integrated Multi-Directional Impact Protection System, which can redirect energy and provide more protection in certain impacts, ensures that you have the latest in head protection technology, too. This makes the Fixture MIPS XL one of the best performance value mountain bike helmets available.

The Agilis W MIPS offers assured style and performance for women, with a sleek silhouette, airy design, and MIPS technology. The Agilis MIPS W is the right choice for women looking for a helmet that combines airy design with slightly deeper coverage and a host of performance features aimed at road and multi-surface riding. The fit is comfortable and secure thanks to our adjustable Roc Loc 5.5 MIPS system that combines fit and positioning adjustments while integrating with MIPS technology for an added measure of protection in the event of an angled impact. The outer Hardbody shell extends to the inside of the helmet, and is molded from a tough polycarbonate that's fused permanently to the EPS foam liner using our In-Mold process to enhance durability and ventilation without excess bulk. The fit is comfortable and secure thanks to our adjustable Roc Loc 5.5 MIPS system that combines fit and positioning adjustments while integrating with MIPS technology for an added measure of protection in the event of an angled impact. The outer Hardbody shell extends to the inside of the helmet, and is molded from a tough polycarbonate that's fused permanently to the EPS foam liner using our In-Mold process to enhance durability and ventilation without excess bulk. Specs: - Impact Management: Integrated MIPS - Construction: In-mold construction, Four-piece Polycarbonate Interlocking Hardbody Shell, Full Hardbody Wrap - Ventilation:Wind tunnel vents with internal channeling - Fit System: Roc Loc 5.5 MIPS - Weight: 300g (Size Medium CPSC); 280g (Size Medium CE) - Certification: Complies with the US CPSC Safety Standard for bicycle helmet for persons age 5 and older E.U.: CE EN1078

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 Vasona MIPS helmet combines sleek, lightweight design with an integrated Multi-Directional Impact Protection System (MIPS) that can redirect energy and provide more protection in certain impacts, giving you the latest in head protection on the road or trail. Made in a comfortable, Universal Fit women's size with Giro's adjustable Roc Loc Sport fit system, the Vasona's fit can be custom-tuned with a simple turn of the dial to make fitting fast and hassle-free. And with a range of colors to suit almost any style, you can choose exactly how your on-bike style comes together.

The Liv Rev Comp brings the same great benefits of the Liv Rev to all levels of riders. You’ll stay cool and dry with ventilation from the Direct Flow Cooling and moisture-wicking TransTextura PLUS as you grind uphill and hit the flats. Open up on high-speed descents with a perfectly snug fit for zero distractions, thanks to the CINCH Pro head-hugging fit system. Whether you attack during a group ride or hang back to take in the views, Liv Rev Comp has you covered with a stylish design and uncompromising comfort. Liv Rev Comp is available with the latest MIPS technology for maximum crash protection. - AirFlow 14-vent cooling system is enhanced by three large center vents pulling air through the helmet and over the rider’s head to keep them cool - In-mold Polycarbonate (PC) shell with lightweight EPS foam provides maximum protection without being uncomfortable - Lightweight, comfortable LiteForm webbing wraps around the head for a secure and comfortable fit. It’s also hydrophobic so it won’t absorb sweat or stretch out like other webbing - Locking cam buckles keep the LiteForm webbing anchored securely - TransTextura Plus anti-microbial padding helps fight bacteria growth by pulling sweat from a rider’s head and transferring it through the AirFlow vents. The natural property of the fabric inhibits microbes that cause odors - Cinch Pro fit system offers optimal coverage by cradling the occipital bone for full protection, support and comfort - Numen+ Link TL Magnetic mount compatible - MIPS Brain Protection System optimized design - Certifications: CPSC/CE - Small/Medium- 49-57cm; Medium/Large- 53-61cm