Helmets

Add the safety of visibility to your helmet and light up the trail, road, or commute with help from the Bontrager Helmet Mount. Easily attaches a light to most helmets. - Works with all Bontrager Ion and Flare lights

Key features - Original equipment replacement Boa System for your Bontrager helmet - Compatible with all Boa-equipped Bontrager helmets, except Velocis MIPS - Can also be used to upgrade your Headmaster-equipped Bontrager helmet to the Boa System

The Chakra Child features Kali's Composite Fusion technology, in-mold construction, and extended rear coverage for added safety and protection. A visor molded directly into the shell and a dial closure system will give any child the confidence and motivation to get out and ride. - Washable, anti-microbial, moisture wicking pads - Polycarbonate shell with EPS foam - Integrated visor - 21 vents provide maximum airflow

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

Sleek styling, a simple and secure buckle, cool graphics, and youth-oriented sizing make the Shuffle Child SB helmet the perfect choice for your kids. Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older. - Headset SX fit system with child oriented sizing that's designed for an easy and accurate fit. - 4th Dimension Cooling System to optimize ventilation. - In-molded shell improves strength and reduces weight. - Tri-Fix web splitter for improved comfort and ease of strap adjustments. - Standard buckle design - Reflective webbing for increased visibility in low-light conditions. - Stylish, youthful designs complement our bike graphics and colors. - Patented clip-on visor included.

Sleek styling, a simple and secure buckle, cool graphics, and youth-oriented sizing make the Shuffle Child SB helmet the perfect choice for your kids. - Headset SX fit system with child-oriented sizing that's designed for an easy and accurate fit - 4th Dimension Cooling System to optimize ventilation - In-molded shell improves strength and reduces weight - Tri-Fix web splitter for improved comfort and ease of strap adjustments - Standard buckle design - Reflective webbing for increased visibility in low-light conditions - Stylish, youthful designs complement our bike graphics and colors - Patented clip-on visor included

Sleek styling, a simple and secure buckle, cool graphics, and youth-oriented sizing make the Shuffle Youth SB helmet the perfect choice for your kids. Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older. - Headset SX fit system with youth oriented sizing that's designed for an easy and accurate fit. - 4th Dimension Cooling System to optimize ventilation. - In-molded shell improves strength and reduces weight. - Tri-Fix web splitter for improved comfort and ease of strap adjustments. - Standard buckle design - Reflective webbing for increased visibility in low-light conditions. - Stylish, youthful designs complement our bike graphics and colors. - Patented clip-on visor included.

Sleek styling, a simple and secure buckle, cool graphics, and youth-oriented sizing make the Shuffle Youth SB helmet the perfect choice for your kids. - Headset SX fit system with youth-oriented sizing that's designed for an easy and accurate fit. - 4th Dimension Cooling System to optimize ventilation. - In-molded shell improves strength and reduces weight. - Tri-Fix web splitter for improved comfort and ease of strap adjustments. - Standard buckle design - Reflective webbing for increased visibility in low-light conditions. - Stylish, youthful designs complement our bike graphics and colors. - Patented clip-on visor included.

Classic good looks, lightweight design and 10 vents to keep the flow going, the Maha provides protection and excellent fit. - Anti-microbial pads - Locking sliders - ABS shell with EPS foam liner - Replaceable fit pads

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 Multi-Directional Impact Protection System (MIPS), a patented technology designed to mitigate against rotational forces transmitted to the brain during certain angled impact scenarios. In addition, the Align II became the only $50 helmet to earn the highest Five Star rating from the independent testing done at the renowned Virginia Polytechnic Institute and State University. When including MIPS and earning this Five Star Virginia Tech Helmet Rating we didn't give up any comfort—the Align II includes the Headset SX dial fit system for easy fit adjustment, our 4th Dimension Cooling System for incredible ventilation, and an easy one-size fit system. 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. Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older. - Align II earned the highest 5-Star Virginia Tech Helmet Rating from internationally renowned Virginia Polytechnic Institute and State University. - 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. - Easily-adjustable, one-size Headset SX fit system is designed for easy and accurate fit for 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. - 4th Dimension Cooling System optimizes ventilation. - In-molded shell improves strength and reduces weight. - Reflective decals for increased visibility in low-light conditions.

A stylish road helmet with advanced WaveCel technology that balances comfort and performance for all riders who value safety. A major advancement in the protection against cycling-related head injuries Starvos WaveCel is a versatile, high-value cycling helmet for new-to-seasoned riders who want the added protection of 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 - Intuitive, one-handed Headmaster fit system makes height and circumference adjustments easy - LockDown dividers make helmet strap management clean and easy to adjust - Soft, comfortable, moisture-wicking, and washable helmet pads - Available in XL sizing - 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) / X-Large (60-66cm) - Fit system: Headmaster II - Pad material: Moisture-wicking pads - Buckle type: Standard buckle - Includes: Crash Replacement Guarantee - Weight: 300g (Small) / 335g (Medium) / 370g (Large) / 385g (X-Large)

Everyday helmet that works for everyday kids who just want to hop on their bike and ride. Protection for your pint-sized cyclist The Tyro is a dedicated children's helmet packed with the same performance and comfort found in adult helmets. A Fidlock magnetic buckle lets kids secure the chin strap easily, and an easy-to-adjust rear dial conforms to a wide range of head sizes. Product details: - In-molded EPS shell with additional rear coverage for protection and durability - Fidlock magnetic buckle fastens effortlessly for a quick, secure, kid-friendly fit - Dialed fit system provides a secure and comfortable fit - Soft, comfortable, moisture-wicking, and washable helmet pads - Adjustable helmet straps provide a clean look and easy fit management - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership - Helmet meets ASTM standards—their tests use a smaller mass headform more realistic to younger riders - Complies with U.S. CPSC safety standards for bicycle helmets for persons age 1 and over Features: Additional coverage An in-molded EPS shell along with additional rear coverage provides assurance for the unexpected. Fidlock magnetic buckle A Fidlock magnetic buckle fastens effortlessly for a quick, secure, kid-friendly fit. Simply move the two ends close to each other and watch as they magically connect. Dialed fit A dialed fit system provides a secure and comfortable fit with a wide range of adjustability. Fresh pads Soft, comfortable, moisture-wicking pads provide instant and maintained comfort and are also removable for cleaning.

Everyday helmet that works for everyday kids who just want to hop on their bike and ride. Ready to ride with the grown-ups The Tyro is a dedicated youth helmet packed with the same performance and comfort found in adult helmets. A Fidlock magnetic buckle lets kids secure the chin strap easily, and an easy-to-adjust rear dial conforms to a wide range of head sizes. Product details: - In-molded EPS shell with additional rear coverage for protection and durability - Fidlock magnetic buckle fastens effortlessly for a quick, secure, kid-friendly fit - Dialed fit system provides a secure and comfortable fit - Soft, comfortable, moisture-wicking, and washable helmet pads - Adjustable helmet straps provide a clean look and easy fit management - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership - Helmet meets ASTM standards—their tests use a smaller mass headform more realistic to younger riders - Complies with U.S. CPSC safety standards for bicycle helmets for persons age 1 and over Features: Additional coverage An in-molded EPS shell along with additional rear coverage provides assurance for the unexpected. Fidlock magnetic buckle A Fidlock magnetic buckle fastens effortlessly for a quick, secure, kid-friendly fit. Simply move the two ends close to each other and watch as they magically connect. Dialed fit A dialed fit system provides a secure and comfortable fit with a wide range of adjustability. Fresh pads Soft, comfortable, moisture-wicking pads provide instant and maintained comfort and are also removable for cleaning.

Sleek styling, cool graphics, and youth-oriented sizing make the Shuffle Youth LED helmet the perfect choice for your kids—day or night. You'll also find that it's equipped with next-level protection courtesy of revolutionary MIPS technology (Multi-Directional Impact Protection System). - Integrated LED tail light for increased visibility in both bright and low-light conditions - Headset SX fit system with youth-oriented sizing that's designed for an easy and accurate fit - 4th Dimension Cooling System to optimize ventilation - In-molded shell improves strength and reduces weight - Tri-Fix web splitter for improved comfort and ease of strap adjustments - Reflective webbing for increased visibility in low-light conditions - Stylish, youthful designs complement our bike graphics and colors - Patented clip-on visor included - MIPS-equipped

For trail or town Built for riders who live active lifestyles and want to stay protected, the Quantum cycling helmet looks just as good as it fits. Featuring MIPS, Multi-directional Impact Protection System, superior ventilation, and excellent coverage. Get it all and even more with a removable visor allowing Quantum to be your go-to helmet no matter what type of riding. MIPS (Multi-directional Impact Protection System) was developed by brain surgeons and scientist to help reduce rotational forces on the brain caused by angled impacts to the head. Key features - MIPS Brain Protection System - The Boa System lets riders easily secure and adjust helmet fit with one hand - In-mold composite skeleton increases helmet integrity for larger vent variations - Soft, comfortable, moisture-wicking, and washable helmet pads - Internal, recessed channels move airflow over your head to stay cool and dry - Removable snap-on visor and port covers provide multiple looks to fit your style - LockDown dividers make helmet strap management clean and are easy to adjust - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership

Sleek styling, cool graphics, and youth-oriented sizing make the Shuffle Child LED helmet the perfect choice for your kids—day or night. - MIPS-equipped. - Integrated LED tail light for increased visibility in in both bright and low-light conditions. - Headset SX fit system with child-oriented sizing that's designed for an easy and accurate fit. - 4th Dimension Cooling System to optimize ventilation. - In-molded shell improves strength and reduces weight. - Tri-Fix web splitter for improved comfort and ease of strap adjustments. - Reflective webbing for increased visibility in low-light conditions. - Stylish, youthful designs complement our bike graphics and colors. - Patented clip-on visor included.

Set your little thrill-seeker up for safe success in a helmet outfitted with Multi-directional Impact Protection System (MIPS). Developed by brain surgeons and scientists, MIPS helps reduce rotational forces on the brain caused by angled impacts to the head. - For growing kids, ages 2 – 4 - MIPS Brain Protection System - Fidlock magnetic buckle fastens effortlessly for a quick, secure, kid-friendly fit - Soft, removable helmet pads can easily be cleaned - Dialed fit system provides a secure and comfortable fit - Adjustable helmet straps provide a clean look and easy fit management - Helmet meets ASTM standards, whose tests use a smaller mass headform more realistic to younger riders - Crash Replacement Guarantee provides free helmet replacement if it is involved in a crash within the first year of ownership

All-purpose, value-packed helmet balances performance and comfort with the added protection of MIPS. All-purpose protection for every rider The Solstice MIPS helmet is proof you don't have to spend a lot of money to get a great fitting, great looking, and easy-to-use bike helmet. Featuring MIPS, Multi-directional Impact Protection System, it includes a sleek built-in brim with plug ports for a clean look when the additional visor is removed. MIPS (Multi-directional Impact Protection System) was developed by brain surgeons and scientist to help reduce rotational forces on the brain caused by angled impacts to the head. Product details - MIPS Brain Protection System - Fidlock magnetic buckle fastens effortlessly for a quick, secure fit - Intuitive, one-handed Headmaster fit system adjusts height and circumference - Built-in and removable visor options give you two choices for constant coverage - LockDown dividers make helmet strap management clean and easy to adjust - Internal, recessed channels move airflow over your head to keep you cool and dry - Soft, comfortable, moisture-wicking and washable helmet pads for added comfort - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership Specifications - Size (head circumference): Small/Medium (51-58cm); Medium/Large (55-61cm) - Fit system: Headmaster II - Pad material: Moisture wicking pads - Buckle type: Fidlock buckle - Includes: Visor plugs - Weight: 335g (Small/Medium)

A comfortable, versatile helmet with clean aesthetics and the added protection of Mips. Style, comfort, and protection for any ride The Trek Solstice Mips helmet is the perfect choice for riders who want to dabble in road and trail riding. It's super comfortable, has an easy to use fit system, and features a simple, clean aesthetic that easily transitions from path to pavement. This helmet also features a Mips safety system, which is a helmet technology designed to help protect riders from rotational forces that occur during some cycling-related accidents. Solstice Mips has also earned a 5-star safety rating from Virginia Tech. Product details: - Mips safety system helps provide additional protection from rotational forces in the event of certain cycling-related accidents - Refined styling with removable visor easily transitions from road to trail - Large vents and recessed channeling keep you cool on warm days - Trek Headmaster 3 fit system provides simple and secure adjustability with just one hand - Soft, comfortable helmet pads wick moisture and are easy to wash after a full day of fun - Covered by our Crash Replacement Guarantee, which provides a free helmet replacement if involved in a crash within first year of ownership - 30-Day Unconditional Guarantee allows you to return your helmet if you're unsatisfied for any reason

Replacement chinbar for the Super Air R helmet.

Riding is for everyone, so we created the Camber to provide a dialed fit for rippers of all sizes, from kids on up. The Camber comes equipped with all the comfort, style, and ventilation to make every ride a joyride. Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older. - Camber earned the highest 5-Star Virginia Tech Helmet Rating from internationally renowned Virginia Polytechnic Institute and State University. - 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 x-small to x-large options spread across five unique shell sizes, the Camber eliminates excess bulk to deliver a comfortable and streamlined fit to a full range of riders. - Easily-adjustable, one-size Headset SX fit system with adjustable Tri-Fix web splitters delivers an easy and accurate fit. - 4th Dimension Cooling System optimizes ventilation. - In-molded shell improves strength and reduces weight. - This helmet is ANGi ready, with a fit system mount designed for easy integration with our ANGi crash sensor. - Average weight: 370 grams (medium).

Loosely based upon the leather "hairnets" that cyclists used to wear before protection was a priority, we took their ventilation and classic style and incorporated them into a modern helmet design that combines aerodynamics, weight, aesthetics, and ventilation—the Airnet with MIPS. - Ultra-light Mindset micro-dial fit system with height adjustability for the perfect fit. - 4th Dimension Cooling System with deep internal channels, large vents, and aligned exhaust ports. - Composite matrix internal reinforcement allows larger vents for enhanced cooling. - drirelease Merino wool pads for increased comfort and sweat/ temperature management. - Vent grippers integrated at the front and rear for secure eyewear storage. - 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. - Reflective decals for increased visibility in low-light conditions. - MIPS-equipped.

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

Ultra-versatile helmet that is light, cool, and sleek with the added protection of MIPS and the convenience of magnetic light mounts. If you could only buy one helmet, this is the one. Whether your finish line is on the race course or to the front door of your destination the Bontrager Circuit MIPS road helmet will deliver. Equipped will all the best features including MIPS brain protection system, Boa fit system for superior comfort and security, and the Blendr mount system for light and camera integration. MIPS (Multi-directional Impact Protection System) was developed by brain surgeons and scientist to help reduce rotational forces on the brain caused by angled impacts to the head. Key features - MIPS Brain Protection System - Blendr mount system easily integrates GoPro camera and Bontrager lights accessories - The Boa System lets riders easily secure and adjusts helmet fit with one hand - In-mold composite skeleton increases helmet integrity for larger vent variations - AgION antimicrobial pads wick moisture and completely eliminate odors naturally - LockDown dividers make helmet strap management clean and are easy to adjust - Internal, recessed channels move airflow over your head to stay cool and dry - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership

The Tone helmet looks good and works (even) better. Mindfully designed for good looks and dependability, Tone redefines how a bike helmet looks when it performs. An integrated fit system with Tri-fix webbing adjustment makes it easy to set your fit and get on your way, while internal channels keep air moving as you briskly ride along in comfort. Leaving the business to the inside, Tone gives you all the right reasons to get outside, from a commute to everyday cruising. - Easily adjustable, Headset SX fit system with adjustable Tri-Fix web splitters delivers an easy and accurate fit. - Internal channeling promotes airflow. - Tone is offered in three shell sizes in the Classic SBC headform. - Tone earned the highest 5-Star Virginia Tech Helmet Rating from the internationally renowned Virginia Polytechnic Institute and State University. - Reflective decals make for seamless day and nighttime visibility. - Equipped with MIPS, a system featuring 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. - ANGi crash sensor ready. - Complies with the U.S. CPSC Safety Standard for Bicycle Helmets for persons age five and older.

The Convoy helmet provides mountain bikers an exceptional custom fit and elevated protection wrapped in Smith's signature style. By integrating Smith's proven VaporFit fit system with a MIPS liner system - the Signal delivers a tailor-made fit for every rider across four unique shell sizes. The Signal's AirEvac ventilation system and engirneered eyewear storage delivers the ultimate integration you expect from a s Smith helmet - PROTECTION: Lightweight in-mold construction, MIPS system available in all colors - FIT: VaporFit adjustable fit system, 21 optimized vents, Performance comfort lining, Ultra-light single layer webbing - INTEGRATION: AirEvac ventilation, Integrated visor, Ultimate eyewear integration - WEIGHT: (Size M, MIPS) 11oz / 300g - CERTIFICATION: CPSC, CE EN 1078, AS/NZS2063

A stylish kids' helmet with WaveCel, a leading helmet technology in the protection against cycling-related head injuries. A major advancement in the protection against cycling-related head injuries Safety has never looked so cool. Jet is a kids' bike helmet with skater-inspired style, proven WaveCel protection, and a parent-approved price. 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 - Meets ASTM standards, whose tests use a smaller mass headform more realistic to younger riders - Fidlock magnetic buckle fastens easily for a quick, secure, kid-friendly fit - Comes with a free sticker kit - Dialed fit system provides a secure and comfortable fit - Soft and thick helmet pads are removable for easy cleaning - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership Specifications - Size (head circumference): Kids (48 – 52cm) - Fit system: HB-80 - Pad material: Moisture wicking pads - Buckle type: Fidlock buckle - Includes: Crash Replacement Guarantee, stickers - Weight: 460g

A stylish kids' helmet with WaveCel, a leading helmet technology in the protection against cycling-related head injuries. A major advancement in the protection against cycling-related head injuries Safety has never looked so cool. Jet is a kids' bike helmet with skater-inspired style, proven WaveCel protection, and a parent-approved price. 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 - Meets ASTM standards, whose tests use a smaller mass headform more realistic to younger riders - Fidlock magnetic buckle fastens easily for a quick, secure, kid-friendly fit - Comes with a free sticker kit - Dialed fit system provides a secure and comfortable fit - Soft and thick helmet pads are removable for easy cleaning - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership Specifications - Size (head circumference): Universal Youth (50 – 55cm) - Fit system: HB-80 - Pad material: Moisture-wicking pads - Buckle type: Fidlock buckle - Includes: Crash Replacement Guarantee, stickers - Weight: 540g

Our most innovative helmet with the added protection of MIPS for serious riders looking for maximum cooling and an aerodynamic advantage. Cool got aero Our Velocis MIPS road bike helmet pairs pro peloton performance with all-day riding comfort. This premium cycling helmet is super light and sleek, allowing you to go faster and stay cool, so you can turn up the jets without overheating. Product details - MIPS Brain Protection System - The Boa System lets you easily secure and adjust helmet fit with one hand - Internal, recessed channels move airflow over your head to keep you cool and dry - 37.5 fit pads pull moisture away from your skin to help maintain ideal comfort - Sunglass port allows easy access to securely store glasses when not in use - Viper Red, White, and Visibility Yellow colorways come with Team Trek-Segafredo sticker kit - Includes removable NeoVisor for all the benefits of a cycling cap without extra bulk - Crash Replacement Guarantee provides free helmet replacement if involved in a crash within the first year of ownership

It's All in Your Tactic. With an unprecedented combination of fit, ventilation, and confidence for trail and enduro riding, the Tactic helmet delivers exceptional coverage and seamless integration with goggles or glasses. - Tune a more precise, personalized fit thanks to Tactic's slim, incredibly adjustable Integrated Fit System that accommodates variations in head shape and occipital base. - Occipital base adjustment personalizes fit for comfort and allows you to tune helmet angle to ensure that your helmet and eyewear stay perfectly synched. - Integrated fixed visor provides increased trail vision and a seamless interface with eyewear. Specifically designed eyewear channels always give you a spot to store your glasses at a moment's notice. - 380 grams (medium) of lightweight performance. - Computational Fluid Dynamic design integrates the maximum volume of internal channeling for optimal airflow through the helmet drawing heat away from the head. 4D brow cooling, which provides a gap between the helmet and forehead, draws airflow into internal air channels at every speed. - Whether you're riding acoustic or e-MTB, the Tactic passes the e-bike Standard NTA8776 so you can can send it with confidence on whatever bike choice you make. - The Tactic earned the highest 5-Star Virginia Tech Helmet Rating from the internationally renowned Virginia Polytechnic Institute and State University. - Fitted with a MIPS Evolve solution to provide 10 to 15 millimeters of rotation in every direction. - Integrated fit system allows for extended (occipital) coverage. - This helmet is ANGi ready, with a fit system mount designed for easy integration with our ANGi crash sensor. Sizing: - Small = 51 – 56cm - Medium = 55 – 59cm - Large = 58 – 62cm