Adults

PRO ADVANTAGE Drawing inspiration from our acclaimed Rev MIPS and Pursuit MIPS helmets, the all-new Rev Pro MIPS helmet is the perfect combination of ultra-lightweight head-cooling design, aero speed, comfort and safety. On the grueling day-long ride or in the all-out sprint, the Rev Pro delivers you maximum performance advantage. FEATURES - We've got you covered! 1 year crash replacement program. - CFD-analysis optimized shape combines maximum ventilation with optimal aero profile - Broad vents and deep interior channels provide consistent air flow without sacrificing aerodynamics - Integrated Cinch Pro MIPS system allows more dispersed contact points around the head for all-day comfort and precise adjustment - Five-position height adjustment discreetly incorporated into lower EPS foam layer - Low- and high-speed impact-tuned construction with optimized low-density EPS, and an ultra-thin toughened polycarbonate shell - Element Strap System (ESS) provides easily adjustable, ultra-thin, LiteForm single-layer straps - TransTextura Plus advanced natural fabrics fight bacteria growth by pulling sweat from a rider’s head and inhibiting the buildup of odor. SPECIFICATIONS - Western: S (51-55cm), M (55-59cm), L (59-63cm) - Asian: S (51-57cm), M (55-61cm), L (59-65cm) - Weight: TBA - Certifications: CPSC 16 CFR Part 1203, CE EN1078 2012+A1, AS/NZS 2063-2008 with Amendment 1-2009

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.

ALLL-ROUND HELMET The Macator is a sporty entry-level helmet for cyclists looking for an outstanding all-round helmet. The Macator has not only a comfortable padding but also offers an excellent ventilation, and it comes in a variety of bright, highly-visible colors. In-Mold: Lightweight, durable helmet with a long-lasting combination of EPS core and Polycarbonate shell - Bug mesh: Full protection from insects - Ponytail compatibility: Perfect fit for people with long hair - Full-ring: Adjustable ring connected to adjustment system enclosing all of the head - Excellent ventilation with 5 air inlets and 8 air outlets - Zoom Ace: Finely adjustable adjustment system with handy adjustment wheel for customizable fit

- In-molded construction - TransTextura moisture-wicking, anti-odor inner padding - MIPS Protection - Optional visor on Path MTB helmet Sizing: - Small/Medium = 49 – 57cm - Medium/Large = 53 – 61cm

A Helmet Made For The City Streets The Pedelec 2.0 is an uncompromising combination of protection and comfort. Complemented by clever features, it is the ideal companion and an indispensable companion for you as a cyclist riding in city traffic. Accidents happen quickly and if you fall, a bicycle helmet helps protect you against serious injury. The Pedelec 2.0 meets the high safety requirements of the big city, with a deep temple area that provides the required additional protection to give you confidence on your commute. The Pedelec 2.0 also features an integrated rain hood, which can be quickly pulled over the helmet at the first sign of rain, and the especially bright, rechargeable light and the replaceable visor offer additional, passive protection. Technology: - This NTA 8776 helmet complies with the requirements in the Dutch Technical Agreement (NTA) 8776. - In-Mold for a durable connection with the outer shell with shock-absorbing helmet material (EPS) - High visibility thanks to powerful reflectors - Large, integrated, high mount LED tail light with 180° visibility - Forced Air Cooling Technology: Sophisticated ventilation system for an optimal head climate - Excellent ventilation with 4 air inlets and 9 air outlets connected with flow channels - Ponytail compatibility - Zoom Ace Urban: Finely adjustable adjustment system with handy adjustment wheel for customizable fit - Size adjustment by means of a half ring made from particularly hard-wearing and slightly malleable plastic for optimal stability and fit - Foamed-in fly nets - Lower edge protection: Provides the helmet with additional protection from external influences - Fidlock magnetic strap buckle - Rain cover integrated in the helmet Sizing - Medium: 52-57 cm - Large: 56-62 cm

We imagined the Sanction 2 to be the go-to full-face helmet for shredders from 5 to 75. This helmet was born rowdy and will never look back. Rowdy by Nature Featuring understated colorways, sleek ID, and a bevy of technical features, Sanction 2 looks, performs, and fits like a much more expensive helmet. During the ground-up design process, our engineering team focused on three core tenets: Fit. Breathability. Value. Fit is amply handled by our new Ventilated DH Air padding. The cheek pads are removable for ease of washing. To address breathability, we spec'd the helmet with 14 vents to prioritize ventilation, regardless of where the helmet is being ridden. We took decades of bike helmet design and race expertise and packed it all into the most affordable full face we've ever made. The result is a bold-looking new helmet perfect for the newer park rider, BMX racer on a budget, or young riders learning to go big. Finally, select colors of the Sanction 2 are available in size XXS to fit the smallest shredders out there and features both ASTM Downhill and BMX certifications. - FLYING BRIDGE VISOR TECHNOLOGY This visor design allows more flexibility and improves airflow across the helmet. By not using a traditional center post and screw concept, we're able to increase the amount of energy management material in a high-impact zone

DETAILS Premium Style for Recreational MTB How do you improve on the #1, top-selling helmet on Earth? Carefully, and with meticulous attention to detail. This updated helmet boasts a revised silhouette, redesigned integration of the Mips® Brain Protection System, and improved cooling power. Whether you're headed for off-road adventure or just a relaxing spin, the Fixture™ Mips II offers the right combination of value, performance, and classic design that can't be beat. With a strong and striking style, quick-dry padding, a simple and durable Roc Loc® Sport fit system, and reflective rear decals, every rider demand has been addressed. After all these updates and improvements, you'd be forgiven for thinking we doubled the price of this second-generation Fixture, but the Fixture Mips II retains its position as the value leader. FEATURES - INTEGRATED MIPS® BRAIN PROTECTION SYSTEM — All Giro helmets are designed to reduce as much energy as possible while meeting and exceeding stringent safety standards. The goal of Giro's Integrated Mips®-equipped helmets is to reduce rotational forces while enhancing fit and comfort by combining the Mips slip plane with the helmet's adjustable fit system. Giro believes that helmets equipped with this technology can reduce the amount of rotational force that may be transferred to rider's brain in certain impacts. Learn more about Mips in the video above. - IN-MOLD CONSTRUCTION — In-Mold Construction fuses a tough polycarbonate outer shell with the helmet's impact-absorbing foam liner. The fusion process allows for better ventilation systems, making in-mold helmets lighter and cooler than traditional helmets. - ROC LOC® SPORT FIT SYSTEM — The Roc Loc® Sport fit system offers easy one-handed operation with a 7cm adjustment range. Its confident clicking feel and sound lets riders know that the helmet is adjusting to a comfortable fit. With comfort similar Roc Loc 5 and ponytail compatibility, the new Roc Loc Sport fit system brings premium function to sport level helmets. - REFLECTIVE DETAILS — Reflective Details enhance visibility at nighttime or in low-light conditions when illuminated by a light source, such as headlights, by returning the light back to the source and reaching the driver's eye. - UNIVERSAL FIT™ SIZING — Our Universal Fit helmets are sculpted to look good and fit great for almost anyone on the first try. By developing proprietary shell sizes based on specific customer groups, and combining them with an easily-adjustable fit system, it's easy for you get the right fit, straight out of the box, without the hassle or expense of trying multiple sizes. HIGHLIGHTS - Quick-dry padding Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older

The sleek shape gets plenty of attention but the real story with Drifter is its incredible versatility. With a trim, compact profile, massive ventilation and superb Float Fit system, you can wear it day in and day out on your regular ride. The removable visor and integrated MIPS energy management make Drifter also perfectly suitable for an all-day epic ride on the weekend. 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 - Removable visor - 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 302 grams (size M) - Small = 52 – 56cm - Medium = 55 – 59cm - Large = 58 – 62cm

The Chakra Solo builds on Kali's best-selling Chakra line of helmets. Featuring Composite Fusion technology, a lower polycarbonate wrap and an integrated bug liner for those fast turns just earned. - Anti-microbial pads - Breakaway visor - PC shell and with EPS foam - Dial-Fit closure - 21 vents for maximum airflow - Simple graphics, and gloss finish

So comfortable you won't ever want to take it off. Head of the class, A3 leaves nothing to chance by setting the modern standard in protection and fit as demanded by Troy Lee Designs' athletes. Equipped with Mips® protection, the co-molded EPP/EPS design features sixteen vents to optimize airflow making for a helmet that is so comfortable it practically disappears on your head. This helmet is designed and intended exclusively for use by bicycling activities, including mountain biking and off-road cycling. Specifications - Co-molded EPP and EPS for low and high-speed Patent Pending impact energy management. - B-Series MIPS Rotational Brain Protection system creates an optimal 360-degree fit that can maximize the safety features built into the A3. - Advanced layering 3-piece shell - 3-Way Magnajust visor easily accommodates goggles, whether they are stowed on the upswing or on your face. - TLD Sweat Glide System – EVA wicking foam behind the comfort liner along the front brow directs sweat away from the eyes and optics. Includes 2 spares. - 2-piece Ionic comfort liner for anti-microbial & sweat-wicking properties that is also quick to dry - 16 vents optimally tuned with the channeling of the helmet to create the most intake and exhaust of any half-shell helmet we've produced - Premium 3D Fidlock magnetic buckle system and composite smart shear screws are made to shear away during severe impact/direct hit to visor. - Includes helmet carrying bag, (2) spare sweat glide strips, and a spare Ionic comfort liner and sticker kit - Certification - CPSC 1203, CE EN 1078, AS NZ 2063:2008.

As bikes become more capable and trail riding gets faster the M2 slots into the current generation of open face protection. Conehead technology utilises dual-density foam to dissipate impacts more effectively giving you a safer ride. The Boa Fit System delivers a connected, fast, customized and durable fit, purpose-built for performance. - 19 vents provide cool air intake and heat exhaust - Conehead technology - Full rear head coverage - Custom 7iDP liner for superior fit and comfort - BOA one hand dial fit adjustment - Rapid adjust chin strap - Tested beyond CE, CPSC, AS standards The M2's foam liner is made of two density layers. The outer layer, which is the black part, is made of high-density foam and has cones facing inwards. The inner layer, the grey part which is close to the head, is made of softer low-density foam and has cones facing outwards.

- In-molded construction - TransTextura moisture-wicking, anti-odor inner padding - MIPS Protection Sizing: - Small/Medium = 49 – 57cm - Medium/Large = 53 – 61cm

CONQUER WITH CONFIDENCE Created with an all-new head form for a more universal fit and the super-slim Mips Air Node® integrated rotational impact protection system, the third-generation Rail is our most comfortable and lightweight trail helmet yet. Boasting a five-star safety rating from the world-renowned Virginia Tech Helmet Safety lab, the Rail also features an accessible, four-position, snap-in height adjustment system, increased ventilation, and supple, lightweight straps with a handy Fidlock® buckle. Comfort, confidence, and zero distractions—so you can focus on charging descents while staying cool on tough climbs. FEATURES: - Designed with a new, rounder head form for a more universal fit - Fully integrated, super-slim Mips Air Node® liner combines maximum rotational impact protection with ultra-lightweight comfort - In-molded upper, sub, and lower PC shells for optimal protective structure - Optimized low and high EPS density - Five-star safety rating from the Virginia Tech Helmet Safety Lab. - Easy to adjust, dual-arm, four-position, snap-in rear height adjustment fit system - 21 strategically placed vents for head-cooling airflow - Supple and lightweight straps with magnetic Fidlock® buckle system - Three-position adjustable visor - Broad top surface area for camera or light attachments SPECIFICATIONS: - Sizes: S (51-55cm) M (55-59cm) L (59-63cm) - Weight: 360g (Size M)

Inspired by the premium Rev Pro and Rev Elite helmets, the Rev Comp combines maximum ventilation and comfort with certified protection and sleek, modern looks. Featuring 18 wide, head-cooling channels, an integrated Mips® Evolve Core low-friction layer, and four-position rear height adjustment, it’s the perfect budget-conscious choice for performance-minded riders. Features - All-new head form design for more universal fit - User-friendly, precise four-position snap-in rear height adjustment - Supple, lightweight anti-microbial strap system - User-friendly side-release buckle - 18 head-cooling ventilation channels - Integrated Mips rotational impact protection technology - Five-star rating from world-renowned Virginia Tech Helmet Safety Lab - Updated design with a sleek, performance look

One helmet all road. The MET Allroad Mips is made for those who enjoy spending time on the saddle, whether on the tarmac or on gravel routes. Sporty on one side, comfy on the other. It's exceptionally lightweight and secure thanks to MET's distinguishing design. Perfect for your next bikepacking adventure. Featuring the MIPS-C2 brain protection system, the MET Allroad Mips is able to slide relative to the head in the case of a crash, redirecting damaging rotational motion. - In-mold polycarbonate shell with EPS liner - MIPS-C2 Brain Protection System - Snap in/out visor - Safe-T E-DUO Fit System - Vertical adjustment and ponytail-compatible - Integrated rear LED light - Reflective rear stickers - Internal air-channeling - Hand washable comfort pads - Adjustable cam divider - Certifications: CE; AS/NZS

Renowned for its ventilation and comfort, this all-purpose MTB helmet is fitted with 360 Turbine technology, offering great protection at a fair price. This fully ASTM DH-certified helmet is the go-to helmet for Enduro and bike park riders. Uphill, downhill, upside down, E-bike, or trail - you name it, the Gravity 4.0 has you covered. The full-face design with a removable mouthpiece offers outstanding ventilation and its convenient Fidlock® buckle makes life just peachy! We all crash. Sometimes hard, and sometimes even harder! There is a solution to minimize the risk of a head and brain injury, however – go and get the best helmet you can find that reduces both rotation and impact energy to your head and brain! Our helmets feature 360 ° Turbine Technology, the helmet is lined with turbines that are 360 °moving discs constructed from an energy-absorbing shape and material, this tech has two exclusive advantages, namely the reduction of rotational acceleration to the head and brain and the absorption of energy upon impact at concussion level. So, the next time you crash, see to it that you are protected by the best! Details: - DH-certified lightweight Polymer shell in two sizes - Maximized ventilation with 22 vents - Removable mouthpiece ventilation cover - Fidlock magnetic closure system - 360° Turbine Technology - Reduced peak brain acceleration by up to 30% at impact speeds associated with concussion - Reduces peak brain rotational acceleration by up to 40% - Dri-Lex® moisture-wicking, breathable, anti-odor, and washable inner liner - Optimal neck brace compatibility - Visor with breakaway function for rotational reduction in a crash - In-molded EPS + EPO impact foam for superior energy absorption - Weight: From 850g (1.87 lbs) - Certified and tested: AS/NZS 2063:2008, ASTM F1952–10, EN1078, CPSC1203

The Shadow Classic Helmet is constructed with a high-impact ABS hard shell with a light EPS core liner for even distribution of force upon impact. - ABS Hardshell construction with light EPS core liner - Includes two sets of padding for a custom fit - CE and CPSE certified - Shadow Crow Head rivets and Classic woven label - X-Small = 46 – 50cm - Small/Medium = 50 – 56cm - Large/X-Large = 56 – 61cm - XX-Large = 61 – 65cm

NEVER COMPROMISE The StormChaser offers the right performance for any racing discipline: Road, cross, XC, and gravel. The helmet is the perfect balance of lighweight, protection, and ventialtion, dueto our ActiCage, a structural reinforcement built into the EPS. Technologies: - In-Mold: Lightweight, durable helmet with a long-lasting combination of EPS core and Polycarbonate shell - ZoomAce retention system is ponytail compatibile - Half-ring: Adjustable ring connected to adjustment system enclosing half of the head - Excellent ventilation with 7 air inlets and 16 air outlets - Forced Air Cooling: Innovative ventilation system with air channels builti into the EPS - High visibility: High visibility due to reflectors - Zoom Ace: Easily adjustable retention system featuring handy adjustment wheel and height adjustment - AirPort sunglasses holder

FOR EVERY ADVENTURE The "Made in Italy" ABUS helmet family is growing. The PowerDome MIPS comes from the same ABUS-owned Italian production facility where our other top road helmets are produced. The most striking feature of the PowerDome MIPS is its weight, coming in at 260g for a size medium. Fit is easily dialed in with the Zoom Ace adjustment system, and the 10 air inlets and 7 air outlets ensure you keep cool when climbing a mountain pass or riding open gravel roads on the hottest of days. The sophisticated ventilation is also supplemented by a sleek air scoop on the helmet: modeled after the PowerDome of high-performance cars. On a gravel adventure, fighting against the wind or a casual ride with friends, the PowerDome MIPS brings the Italian lifestyle to every ride. This keeps the focus on having fun on two wheels. No rules, no dress code, no pressure to perform. With this helmet, the journey becomes the destination!

- Internal ActiCage for substantial ventilation - Internal ActiCage for substantial ventilation - Rechargeable Magnetic rear LED light - Removable visor - Full headring for perfect fit - Fidlock magnetic buckle - Height Adjustable Zoom Ace Urban retention system

The StormChaser offers the right performance for any race: road, cross, and even criterium. It is light, comfortable, and perfectly ventilated. ActiCage, a structural reinforcement built into the EPS, offers superb protection. - In-Mold: Lightweight, durable helmet with a long-lasting combination of EPS core and Polycarbonate shell - Ponytail compatibility: Perfect fit for people with long hair - Half-ring: Adjustable ring connected to adjustment system enclosing half of the head - Lower edge protection: Provides the helmet with additional protection from external damage - Excellent ventilation with 7 air inlets and 16 air outlets - Forced Air Cooling: Innovative ventilation system using intelligently arranged air channels in the EPS - High visibility: High visibility due to reflectors - Zoom Ace: Finely adjustable fit system with a handy adjustment wheel - AirPort: Aerodynamic glasses holder with strap guide Sizing: - Small: 51 – 55cm - Medium: 52 – 58cm - Large: 59 – 61cm

Make sure you have the decisive edge in the battle for every watt: take your racing experience to the next level with the GameChanger 2.0 MIPS. Because every second counts, less air resistance is a must! This is where the wider rear comes into play, in addition to the aerodynamic shape. The AeroBlade optimises the airflow with a special grid structure and adapts to different speeds, side angles and helmet inclinations. So the GameChanger 2.0 has a solution for every racing situation. Even on the hottest rides, you can keep a cool head thanks to the AirBoost air inlet and sophisticated ventilation system. But so that comfort doesn’t fall by the wayside, you can conveniently adapt the helmet fit using our patented adjustment system. ActiCage increases the stability of the road helmet. In the MIPS variant, the Air Node Rotation System softens the rotational forces in the event of a fall and offers greater protection for the brain. Faster forward with the GameChanger 2.0: tested by professional athletes in the wind tunnel and on the road. Time to get going!

Fitness rides, adventure rides, family rides around the neighborhood. With its easy, approachable style, the Trace MIPS is an all-around performer that gives you loads of options. All-Purpose Performer - 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—A lightweight fit system with an easy-to-turn rubber overmolded dial for adjustments (integrated with MIPS). - 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

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

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

Modern design comes to the urban helmet. The Yadd-I with its distinctive angular design takes the urban helmet to a new level. Forced Air Cooling Technology keeps the rider's head cool even on the warmest of days, and the Soft Tune retention system allows the rider to adjust the helmet for a perfect fit. -Soft Tune Fit System -Polygon Design -Forced-Air Cooling Technology -Removable cap-like visor

The Pedelec 2.0 offers an uncompromising combination of comfort and protection. Complemented by clever features, it is the ideal companion when cycling in road traffic. - In-Mold for a durable connection with the outer shell with shock-absorbing helmet material (EPS) - Forced Air Cooling Technology ventilation system keeps you cool and comfortable with 4 air inlets and 9 air outlets connected with flow channels - Zoom Ace Urban adjustment system with handy adjustment wheel for a customizable fit - Size adjustment by means of a half-ring made from particularly hard-wearing and slightly malleable plastic for optimal stability and fit - High visibility due to powerful reflectors and an integrated LED taillight with 180-degree visibility - Foamed-in fly nets keep insects out - Lower edge protection provides the helmet with additional protection from external influences - Fidlock magnetic strap buckle - Ponytail-compatible and well suited for braided hairstyles Sizing: - Medium: 52 – 57cm - Large: 56 – 62cm

Inspired by gravity riders and presenting a modern mountain biking style, this off-road helmet is designed with generous ventilation and added protection Along with essential safety features like MIPS technology, we’ve added a lower rear coverage design to shield more of the back of your head. Direct Flow Cooling channels are designed to pull in air to keep you cool during slow, challenging climbs or flowy descents. With a one-handed dial adjustment and rear fit system you get perfect head-hugging comfort. - Simple, clean and compact helmet shape - Optimized vent design for enhanced breathability - MIPS brain protection system and lower rear coverage - New 360° full surround fit-belt - Intuitive one-handed dial adjustment (Cinch ONE fit system) - Compatible with Alumbra taillight: Liv proprietary taillight docking station - In-molded construction for added strength - TransTextura moisture-wicking, anti-odor inner padding - Pony-tail friendly rear fit system space - Detachable visor - S / M (49-57cm), M / L (53-61 cm)

- In-molded construction - TransTextura moisture-wicking, anti-odor inner padding - MIPS Protection - Optional visor

TACKLE ALL TRAILS With a new head form that provides a better fit for more riders, the redesigned Roost features trusted Mips protection, a precise three-position rear-height adjustable fit system, increased ventilation, and modern styling. Certified five-star by the world-renowned Virginia Tech Helmet Safety Lab, Roost is a lightweight go-to helmet for charging the toughest trails. FEATURES - An all-new, rounder head form offers a more universal fit - Mips rotational impact protection system - In-molded upper and lower PC shells for an optimal protective structure at a light weight - Optimized low and high EPS density - Five-star safety rating from the Virginia Tech Helmet Safety Lab - Easily accessible dual-arm, snap-on, three-position rear height adjustment - 12 oversized vents for maximum head-cooling airflow - Supple and lightweight strap system - Three-position adjustable visor SPECIFICATIONS - Sizes: S (51-55cm) M (55-59cm) L (59-63cm) - Weight: 385g (Size M) HIGHLIGHTS Featuring the trusted lightweight Mips rotational impact liner, in-molded upper and lower PC shells, and a redesigned three-position rear-height fit system, the new Roost combines trusted protection with cool comfort and looks. ROUNDER HEAD FORM DESIGN A new rounder head form gives the Roost a more universal fit, allowing more riders to find the perfect size. TRUSTED MIPS PROTECTION An industry standard for more than 15 years, the Mips rotational impact liner manages the forces of rotational motion, separating the shell and liner with a low-friction layer that slides relative to the head on angled impact. EASY HEIGHT ADJUSTMENT A dual-arm, snap-in, three-position rear height adjustment allows you to dial in the perfect fit. TWO-LAYER PROTECTION In-molded upper and lower PC shells provide optimal protective structure at a super lightweight. OPTIMAL AIRFLOW 12 oversized vents keep you cool on the hottest days. MIPS: The Mips BPS (Brain Protection System) is designed to add protection in helmets against the rotational motion. The rotational motion is a combination of rotational energy (angular velocity) and rotational forces (from angular acceleration) that both affects the brain and increases the risk for minor and severe brain injuries. Mips BPS has been scientifically proven to reduce rotational motion when implemented in a helmet by absorbing and redirecting rotational energies and forces transferred to the brain. VIRGINIA TECH 5 STAR RATING In collaboration with the Insurance Institute for Highway Safety, Virginia Tech have rated a total of 128 bike helmets using the STAR evaluation system. The bicycle helmet impact tests evaluate a helmet's ability to reduce linear acceleration and rotational velocity of the head resulting from a range of impacts a cyclist might experience. Helmets with more stars provide a reduction in concussion risk for these impacts compared to helmets with less stars.