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Helmets

$149.99
All-day comfort with superior head and brain protection. Made from a lightweight polymer shell, the Enduro 3.0 helmet features a Powerbridge construction for greater shell strength. The Enduro 3.0 helmet also features 360 ° Turbine Technology. These small blue 360-degree moving discs are 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 the concussion level. The helmet features low-speed ventilation ports and a Fidlock® magnetic buckle for easy fitting. You can conveniently store your sunglasses at the rear of the helmet as well. The visor is adjustable and breaks away upon impact for extra rotational impact force reduction. If you are looking for a multifunctional, lightweight helmet, then the 3.0 All MTN helmet is the helmet you want. Details: - Lightweight 4-piece polymer shell in three sizes - Powerbridge top shell construction for greater load distribution - Sunglasses dock port for easy, secure storage - 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% - Adjustable visor with breakaway function for rotational impact force reduction - In-molded impact foam for superior energy absorption - Maximized ventilation with 20 vents effective even at low speeds - Moisture-wicking, breathable, anti-odor, and washable inner liner - Premium bottom trim for a quality finish - Weight: from 350g (0.78 lbs) - Certified and tested: AS/NZS 2063:2008, EN1078, CPSC 1203
$199.99
When trail riding moves up to the next level and you are challenging mountains. The mountain will call you at one point or another, so be prepared! A universal sunglasses dock lets you safely dock your sunglasses under the visor when not in use, protected from scratches and unwanted impacts. The adjustable visor opens up enough to place your goggles underneath, so you don’t have to constantly remove them. You will also love the convenience of the Fidlock buckle system. Leatt helmets feature 360 ° Turbine Technology that reduces both rotation acceleration and concussion level impact energy to your head and brain! Do not be afraid to push your limits. Gear up and be prepared for whatever is waiting along the trail. Details: - Lightweight Polymer shell - Sunglasses dock port for easy, secure storage - 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% - Adjustable visor with breakaway function for rotational impact force reduction - Maximized ventilation with 18 vents. Optimized for riding and effective even at low speeds - Moisture-wicking, breathable, anti-odor, and washable inner liner - In-molded EPS + EP0 impact foam for superior energy absorption - Weight: From 430g (0.95 lbs) - Certified and tested: AS/NZS 2063:2008, EN1078, CPSC 1203, ASTM F1952-15
$64.99
The FeatherWeight features In-Mold technology to make a custom shape and fit utilizing a thin outer shell that covers and protects high-density EPS foam. - High density EPS in-mold construction - Tested and certified for CPSC and EN 1078 standards for bicycle use - Two sets of padding included for custom fitting - Crow rivets and 10 flow-vents to keep cool - Small/Medium = 50 – 56cm - Large/X-Large = 58 – 61cm
$65.00
You need to get out on your bike even in terrible weather. Fitting in an early commute or a mid-winter ride is easier when you're warm, comfortable, and visible. Keeping your head warm in bad weather can be the best way to fend off the elements. - GORE-TEX Product: durably waterproof, windproof and extremely breathable - Reflective band - Elastic hem - Reflective logo - Durably waterproof - Extremely breathable - All weather conditions - Engineered for Cycling - Weight: 0.8 ounces
$79.00
MET Miles MIPS is a touring helmet with road spirit. It has a comfortable shape and plenty of vents to enhance air flow. Featuring the MIPS-C2 brain protection system, the Miles is able to slide against the head in the case of a crash, redirecting damaging rotational motion. MIPS is engineered to add extra safety to the standard construction of helmets in case of certain impacts. The MIPS Brain Protection System (BPS) is attached inside the helmet, between the comfort padding and the EPS. The unique 360° head belt ensures that there will be no pressure points on the skull, allowing you to achieve the perfect fit. - In-mold polycarbonate shell with EPS liner - MIPS-C2 Brain Protection System offers extra protection in the case of certain impacts - Safe-T Twist 2 Fit System - 360° head belt and vertical adjustments offer a customized fit - Straps with an adjustable divider provide a customized fit - Reflective rear decal to enhance visibility - 18 vents are internally engineered for air channeling to improve ventilation and comfort - Comfort pads are hand-washable - Reflective rear decal - Certifications: CE; AS/NZS; US Sizing: - Small/Medium = 52 – 58cm - Medium/Large = 58 – 61cm
$55.00
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)
$249.99
AERODYNAMICS REDEFINED The GameChanger sets new standards. What is a cyclist's biggest enemy? Air resistance. Every cyclist knows that battling against the wind is one of the toughest challenges they face. With its Multi Position Design, the GameChanger redefines aerodynamics. The special shape reduces windage by minimizing exposed surfaces, regardless of weather conditions, head-tilt position and inflow angle. Our innovative Forced Air Cooling Technology sucks in incoming air and channels airflow around the head, creating a perfect climate and keeping your head cool even in hot races. - Multi Position Design: For optimal aerodynamics regardless of head tilt - Forced Air Cooling Technology: Sophisticated ventilation system for an optimal head climate - FlowStraps: Aerodynamic, flutter-free and skin-friendly thanks to specially developed strap profile - Zoom Ace: Finely adjustable adjustment system with handy adjustment wheel for customizable fit - AirPort: Aerodynamic glasses holder with strap guide - Multi Shell In Mold: For safe shock absorption - Ponytail compatibility: Helmet well suited to plait wearers
$279.95
Lightweight full-face helmets for all-mountain riders and enduro racers. The Youth Proframe Helmet delivers exceptional airflow and breathability on both climbs and descents. Those looking to capture every sweet run will appreciate the removable, under-visor GoPro mount. Ride wide open with the Proframe Helmet. Key Features and Specifications: - Mips® added protection system has been proven to reduce the rotational motion when implemented in a helmet by absorbing and redirecting energies and forces otherwise transmitted to the brain - 3-position adjustable visor compatible with goggles - Removable under visor GoPro mount included - Increased ventilation and decreased surface contact area improve cooling - Includes additional pad set to optimize fit Meets the ASTM-F1952 Downhill MTB certification standard Note: Avoid exposure to aerosol sprays like bug repellent and sunscreens as they can cause your helmet's finish to peel 22% ABS, 21% EPS, 15% polycarbonate, 13% polyurethane, 9% Pa
$599.95
The MTB helmet trusted by World Cup champions. Designed for the toughest downhill mountain bike runs, the Rampage Pro Carbon Mips® Helmet is full-face, full-gas, and packed with race-ready features and technology that’ll keep your head in the game and your safety on speed dial. When every second counts, you can’t argue with gravity. Lightweight performance and protection for all your downhill runs—you can’t argue with that either. Key Features and Specifications: - Full-face mountain bike helmet - Mips® added protection system is meant to reduce the rotational motion by absorbing and redirecting energies and forces otherwise transmitted to the brain - Breakaway visor screws are designed to sheer off at impact to reduce rotational forces - Dual-density, In-Mold Varizorb™ EPS balances weight with performance and is meant to provide improved protection by spreading forces over a wider surface area - Lightweight carbon fiber shell construction - Injected Mesh vent screens maintain superior ventilation and airflow while shielding the rider from dirt and debris - Removable, washable X-Static® comfort liner and cheek pads are antimicrobial and manage odor while wicking moisture - Structured carry bag with vents and fleece lining Meets EN 1078, CPSC 1203, AS/NZS 2063, and ASTM F1952 Note: Avoid exposure to aerosol sprays like bug repellent and sunscreens as they can cause your helmet's finish to peel Materials: 40% composite, 19% EPS, 16% polyurethane foam/polyester, 8% nylon, 7% Abs+pc
$599.95
The helmet trusted by UCI World Cup champions. - MIPS added protection system is meant to reduce the rotational motion when implemented in a helmet by absorbing and redirecting energies and forces otherwise transmitted to the brain - Breakaway visor screws are designed to sheer off at impact to reduce rotational forces - Dual-density, In-Mold Varizorb EPS balances weight with performance and is meant to provide improved protection by spreading forces over a wider surface area - Lightweight carbon fiber shell construction - Injected Mesh vent screens maintain superior ventilation and airflow while shielding the rider from dirt and debris - Removable, washable X-Static comfort liner and cheek pads are antimicrobial and manage odor while wicking moisture away from the head - EPS, Carbon Fiber, Fiberglass, Nylon, Polyester
$224.95
Our Full-Coverage Open-Face MTB Helmet Redefining open-face helmets, the Dropframe Pro has earned Virginia Tech's best rating (5 STARS) in their Bicycle Helmet Ratings program with the best rating of any helmet they have ever tested. Super-light and extremely comfortable, it's the choice for trail riders seeking more coverage, more confidence, and more fun. This game-changing open-faced enduro helmet features MIPS, our dual-density Varizorb EPS liner, and increased coverage for the ears, jaw, and back of the head. This MTB helmet provides the most complete coverage we offer in an open-face helmet. Features - Proven MIPS impact protection system reduces rotational forces in a crash - Dual-density Varizorb EPS liner is meant to provide improved impact protection - 8 Big Bore vents and 7 exhaust vents keep you cool and aid in moisture management - Fixed visor is positioned perfectly for maximum air flow - Fidlock SNAP helmet buckle provides quick entry and exit - Removable antimicrobial and moisture-wicking liner - Includes additional pads for a custom fit - Small = 52 – 54cm - Medium = 54 – 56cm - Large = 56 – 58cm - X-Large = 58 – 60cm Certifications - CPSC - EN 1078 - AS/NZS 2063
$224.95
- MIPS' added protection system has been proven to reduce the rotational motion when implemented in a helmet by absorbing and redirecting energies and forces otherwise transmitted to the brain - Dual-density Varizorb EPS provides improved protection by spreading forces of impact across a wider area - 8 Big Bore vents and 7 exhaust vents keep you cool and aid in moisture management - The securely fixed visor is positioned to channel airflow into the Big Bore vents - Fidlock SNAP helmet buckle provides quick and secure entry and exit while wearing gloves - Removable antimicrobial and moisture wicking liner - Includes additional pads for custom dialed fit
$36.00
PROTECTION MADE EASY. For young riders, protection is the first priority. The new Hoot helmet makes it easy. FEATURES - We've got you covered! 1 year crash replacement program. - 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. Dial fit system offers optimal coverage by cradling the head for full protection - Integrated foam visor SPECIFICATIONS - Child: 50-55cm - Age: 4-10 years - Certifications: CPSC/CE;AS/NZS
$149.99
The one trail helmet you will ever need with premium head and brain protection. A lightweight all-purpose MTB helmet for trail riding, cross-country training, and backcountry or gravel adventures. This helmet is well-ventilated with maxiflow air channels and the Dri-Lex® liner is washable, moisture-wicking, anti-odor, and breathable. Featuring convenient sunglasses docks above the visor for easy storage on and off the bike. The MTB 3.0 Trail helmet also has the much-liked Fidlock buckle for easy use with gloves on. The MTB 3.0 Trail helmet has a brand-new Powerbridge construction design making it very safe, well-ventilated and stylish. Featuring 360 Turbine Technology, the helmet is lined with turbines which are 360 °moving discs constructed from an energy-absorbing foam and material. This tech has two exclusive advantages, namely the reduction of rotational acceleration to the head and brain by up to 40% and the absorption of energy upon impact at concussion level by up to 30%. Ride safe, while looking and feeling cool with the MTB 3.0 trail helmet. Details: - MaxiFlow air channels are effective even at low speed - In-molded impact foam for great energy absorption - Maximized ventilation with 19 vents - Removable visor with breakaway function for rotational impact force reduction - Strap divider and fit system developed for a custom fit, ease, and comfort - Soft touch and moisture-wicking chin straps - Moisture-wicking, breathable, anti-odor, and washable inner liner - Lightweight Polymer Compound shell in three sizes - 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% - Weight: from 350g - Certified and tested: AS/NZS 2063:2008, EN1078, CPSC 1203
$549.00
The Bluegrass Legit Carbon Helmet is a premium race-day full-face helmet. Developed for competitions, it exceeds all of the certifications for racing downhill and enduro. - The Legit Carbon features a flexible safety-release visor to avoid twisting of the neck in impacts from any angle. - Designed with hearing vents to help riders maintain balance and hit their optimum performance levels - The Legit Carbon uses a carbon fiber outer shell paired with a multi-impact EPS liner to achieve the finest blend of high-impact performance and low-weight - Vents and air channeling are optimized for all-day park sessions, with two large exhausts working in synergy with the EPS channels, to keep you cool at both high and low speeds - Featuring the MIPS E5-4® brain protection system, the BLUEGRASS Legit Carbon is able to slide relative to the head in the case of a crash, redirecting damaging rotational motion - The Legit Carbon is suitable for all head shapes and sizes, thanks to its meticulously refined internal shaping - The comfort is boosted even more by the snap-in soft padding - Durability and quality are enhanced by an injected PU foam paired with the chin guard and three polycarbonate shells strategically molded on the EPS liner
$250.00
The Bluegrass Legit Helmet is a budget-friendly full-face helmet equipped with many racing-inspired features. - Fiberglass outer shell with EPS liner for optimal fit - Safety-release visor system includes a flexible visor to manage twisting forces - Includes 11 vents and a breathable chin guard for comfort - Designed with hearing vents to help riders maintain balance and hit their optimum performance levels - Allows for a wide field of vision and is goggle-compatible - Soft back-head support makes this helmet exceptionally comfortable - Fully removable, hand-washable padding - MX-style straps and a double-D buckle
$159.00
The Veleno MIPS is the most versatile helmet in the MET range, giving the rider access to the entire world of cycling in one go thanks to its variety of features. Featuring the MIPS-C2 brain protection system, the MET Veleno MIPS is able to slide against the head in the case of a crash, redirecting damaging rotational motion. MIPS is a brain protection system—engineered to add protection to the standard construction of helmets in case of certain impacts. The MIPS Brain Protection System (BPS) is attached inside the helmet, between the comfort padding and the EPS. The visor is minimal and removable thanks to invisible anchor clips that keep the design clean and stylish in both modes. The Veleno MIPS comes with 26 air vents and finely engineered internal air channeling to maximize the airflow. It also features two dedicated ports for securely docking sunglasses while resting or climbing. The 360° head belt of the MET Safe-T Upsilon retention system ensures that there will be no pressure points on the skull and its internal shape is comfortable for almost all different shaped heads. - In-mold polycarbonate shell with EPS liner - Fully polycarbonate wrapped EPS liner enhances durability - Extended head coverage for more thorough head protection - MIPS-C2 Brain Protection System offers extra protection in the case of certain impacts - MET Safe-T Upsilon Fit System - The 360° head belt with vertical adjustments allow for a customized fit - The removable visor with hidden anchors ensures maximum versatility - Air Lite straps with an adjustable divider provide a comfortable and customized fit - 26 vents are internally engineered for air channeling to improve ventilation and comfort - Sunglass ports to securely dock sunglasses when climbing or resting - Certifications CE; AS/NZS; US Sizing: - Small = 52 – 56cm - Medium = 56 – 58cm - Large = 58 – 61cm
$34.99
- Classic BMX/Skate style - 11 vents help keep you cool - FitRite retention dial for one-hand adjustment - Adjustable chin strap - Available in Youth sizes S/M (48-54cm) and L/XL (55-58cm)
$124.99
- Bern's entry into the road helmet market with a lightweight, aerodynamic design with max ventilation - MIPS equipped for maximum protection - Lightweight and breathable 360-degree adjustable Bern Yoke fit system developed with Boa - Reinforced in-mold EPS construction with 18 total vents - Interior air flow channels for added ventilation - Built-in sunglass storage on the shell exterior - Antimicrobial comfort padding - Small: 52-55.5cm, Medium: 55.5-59cm, Large: 59-62cm - 287g
$49.99
- Simple, streamlined design for the commuter or recreational rider - FitRite retention dial for one-hand adjustment - 16 vents to keep you cool in traffic or in the park - Available in Adult sizes Small/Medium (55-59cm) and Large/X-Large (59-63cm) - Certification: CPSC, EN1078
$29.99
- FitRite retention dial for one-hand adjustment - 6 vents help keep your child cool and comfortable - Child universal fit 44-50cm
$159.00
The MET Terranova MIPS is designed for trail and eMTB riding. The construction and fit are inspired by MET's Roam helmet, guaranteeing optimal comfort. The increased head coverage ensures a higher level of protection around the two most sensitive brain areas: the back and the temples. Featuring the MIPS-C2 brain protection system, the Terranova is able to slide against the head in the case of a crash, redirecting damaging rotational motion. The tool-free adjustable visor is injection-molded to flex and bend when there is an impact against it. This unique feature helps to manage extra rotational forces transferred to your neck in a crash. The Terranova MIPS also features two dedicated ports to securely dock sunglasses while climbing or resting. The 360° head belt in the MET Safe-T DUO retention system ensures that there will be no pressure points on the skull and makes the helmet perfectly stable on the head while riding on rugged terrains. - In-mold polycarbonate shell with EPS liner - Fully polycarbonate wrapped EPS liner enhances durability - Extended head coverage for more thorough head protection - MIPS-C2 Brain Protection System offers extra protection in the case of certain impacts - MET Safe-T DUO Fit System - The 360° head belt with vertical adjustments allow for a customized fit - The injection-molded visor is adjustable and flexible to avoid extra rotation of the neck in case of a crash - Sunglass ports to securely dock sunglasses when climbing or resting - Exceptionally comfortable and secure on the head thanks to refined internal shape - 17 vents are internally engineered for air channeling to improve ventilation and comfort - Certifications CE; AS/NZS; US Sizing: - Small/Medium = 52 – 56cm - Medium/Large = 56 – 58cm - Large/X-Large = 58 – 61cm
$109.99
The M1 youth helmet is perfect for anything from racing to full days of uplifting or bike park laps. The M1 is the ideal helmet to keep you protected and comfortable. Features: - Youth helmet - Lightweight ABS Shell - 17 Vents provide cool air intake and heat exhaust - Large eye port for greater field or vision and improved goggle fit - Complies to CE, SPSC and AS Standards
$89.99
The perfect lightweight junior helmet offers head and brain protection. This is a lot of helmet for the price. It offers extensive protection around the head and deeper rear coverage. Perfect for junior riders that need a little bit more protection. It also includes Leatt’s 360 Turbine technology, which is proven to reduce the risk of concussion by up to 30% and rotation forces upon impact by 40%. No need to keep taking it on and off either. Lightweight and with 14 Maxiflow air channels, the lightweight construction also offers great ventilation for those hot days. Detail: - Polymer Compound shell - MaxiFlow impact foam air channels are effective even at low speed - 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% - Extended rear coverage for added protection - Adjustable visor with breakaway function for rotational impact force reduction - In-molded impact foam for great energy absorption - Maximized ventilation with 14 vents effective even at low speeds - Moisture-wicking, breathable, and washable inner liner - Certified and tested: AS/NZS 2063:2008, EN1078, CPSC 1203
$28.00
For the youngest riders, age 5 and under, protection is the first priority. The new Holler helmet makes it fun and easy. - 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 odor - 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
$89.99
For maximum safety, the Viantor has the ActiCage structural reinforcement integrated into the EPS. It provides maximum protection while ensuring optimal ventilation and extreme comfort. - ActiCage allows for large ventilation openings without compromising the helmet's safety - Multi Shell In-Mold for durable bonding of multi-part outer shell and shock-absorbing helmet material (EPS) - Good ventilation with 4 air inlets and 14 air outlets connected with flow channels - Zoom Ace fit system with a non-slip adjustment wheel - Semi-enclosing plastic ring connected to the adjustment system for optimum stability and fit - Ponytail-compatible and well suited for braided hairstyles Sizing: - Small: 51 – 55cm - Medium: 52 – 58cm - Large: 58 – 63cm
$149.99
The MonTrailer offers this increased need for protection and a multitude of well thought-out features for off-road use. This mountain bike helmet is light, extremely well ventilated and extremely comfortable and is perfect for racing or the everyday trail tour. - In-Mold for a durable connection with the outer shell with shock-absorbing helmet material (EPS) - Good ventilation with 5 air inlets and 7 air outlets connected with flow channels - Semi-enclosing plastic ring connected to the adjustment system for optimum stability and form-fitness - Bottom edge protects the helmet from external influences - ActiCage, a structural reinforcement integrated in the EPS to optimise stability - Zoom Ace adjustment system with non-slip adjustment wheel for individual fit - GoggFit ensures safe positioning of glasses and provides storage space when not in use - The transparent visor gives the wearer good all-round vision without having to take their eyes off the trail
$249.99
The GameChanger sets new standards. What is a cyclist's biggest enemy? Air resistance. Every cyclist knows that battling against the wind is one of the toughest challenges they face. With its Multi Position Design, the GameChanger redefines aerodynamics. The special shape reduces air resistance by minimizing exposed surfaces regardless of weather conditions, head-tilt position, and inflow angle. Our innovative Forced Air Cooling Technology sucks in incoming air and channels airflow around the head, creating a perfect climate and keeping your head cool, even in hot races. - Multi Position Design: For optimal aerodynamics regardless of head tilt - Forced Air Cooling Technology: Sophisticated ventilation system for an optimal head climate - FlowStraps: Aerodynamic, flutter-free, and skin-friendly thanks to specially developed strap profile - Zoom Ace: Finely adjustable adjustment system with handy adjustment wheel for customizable fit - AirPort: Aerodynamic glasses holder with strap guide - Multi Shell In Mold: For safe shock absorption - Ponytail compatibility: Helmet well suited to plait wearers Sizing: - Small: 51 – 55cm - Medium: 52 – 58cm - Large: 59 – 62cm
$189.99
The combination of innovative design, the latest technology, outstanding functionality, maximum ventilation, and low weight make the Aventor a real allrounder. The Aventor is the perfect helmet for cyclists who need a cool head for riding in high temperatures and on challenging stages. - Double shell, in-mold construction for durable fusion of the outer shell with the shock-absorbing helmet material (EPS) - Lower edge protection provides the helmet with additional protection coverage - ActiCage, structural reinforcement integrated into the EPS, optimizes stability - Zoom Ace, fine adjustment system with handy dial provides a personalized fit - Half-surrounding plastic ring connected to adjustment system - Ponytail compatible - Fidlock magnetic strap buckle Sizing: - Small: 51 – 55cm - Medium: 54 – 58cm - Large: 57 – 61cm
$54.99
The Scraper 3.0 is just as much at home on the bike as in the halfpipe, protecting the BMX rider as reliably as the longboard fan. And, with the optional winter kit, you can get after it in all types of weather. The intelligent ventilation system, with its many inlets and outlets, and the numerous adjustment options that adapt the Scraper 3.0 to each head in a few easy steps, ensure the greatest possible comfort. - ABS hard-shell technology - High visibility due to powerful reflectors - Ponytail compatibility: Helmet well suited to plait wearers - Forced Air Cooling Technology: Sophisticated ventilation system for an optimal head climate - Excellent ventilation with 4 air inlets and 4 air outlets - Size adjustment by means of a half-ring made from particularly hard-wearing and slightly malleable plastic for optimal stability and fit - Zoom Ace Urban: Finely adjustable fit system with a handy adjustment wheel Sizing: - Medium: 54 – 58cm - Large: 57 – 62cm