Skip to main content

Filter By:

  • Show More Brands

  • Show Fewer Brands
  • Show More Sizes
  • Show Fewer Sizes
  • Show More Model Years
  • Show Fewer Model Years

Adults

$139.99
THE BEST OF BOTH WORLDS The Hyban 2.0 combines a particularly robust hard shell with a huge air intakes. In combination with the integrated, bright LED rear light, the Hyban 2.0 is the perfect everyday helmet for the city. - ABS hard shell: Robust helmet made of EPS foam and injection molded outer shell - High visibility: High visibility thanks to powerful integrated LEDs - 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 Urban: Finely adjustable adjustment system with handy adjustment wheel for customisable fit - Large, highly mounted and integrated LED tail light with 180° visibility
$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
$169.00
Cooler, Faster in a Protective Package The trailblazing A2 is Troy Lee Designs’ MTB trail helmet that checks all the boxes. Its stylish shell not only incorporates huge intake and exhaust ventilation ports, but it also comes with the very best in impact protection. From breakaway visor screws and the innovative MIPS® system and an industry-first dual-density EPP + EPS liner that protects against both high and low-speed impacts; this is a helmet that doesn’t take your safety lightly. Add in an adjustable strap and X-Static® Pure Silver comfort liner and the comfort is every bit on par with the protection. - MIPS (Multi-directional Impact Protection System) - Patent pending, industry-first dual density EPP = EPS impact liner - Innovative break-away visor screws help reduce the likelihood snagging during a crash - Low-profile, semi-adjustable strap dividers - X-Static® Pure Silver comfort liner
$100.00
The Kali Lunati 2.0 is ready for any off-road adventure. This enduro-focused helmet features a deep-coverage design, and aggressive venting to keep you cool. - Includes a Quadcore Low Density Layer - soft gel padding for rotational and low-g impact protection - Features composite fusion - in-molding technology merging the shell and EPS foam liner - 25 vents to keep you cool - Break-away moto-style visor - Removable/washable/anti-microbial pads and bug liner - Accessory mounting system - Vista fit system - Weight: 286g / 10.1oz
$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)
$189.99
The all-new Liv Rail Mips Helmet features the latest in high-performance off-road technology. Purpose-built with extended bottom shell design for additional back-of-head coverage plus the Integrated Mips Air Node technology to offer the best rotational impact protection. The 4-position rear height adjustment provides an optimal secure fit every time, sweat-blocking brow pads and an anti-microbial strap bring comfort even when things heat up. The ultimate helmet for riders who demand the perfect combination of comfort, fit, and increased protection. FEATURES: - Created with an all-new, rounder head form for increased fit range - 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 for more precise fit options - Twenty strategically placed vents for optimal head-cooling airflow - Supple and lightweight straps with Magnetic Fidlock® buckle system - Broad top surface area for camera or light attachments SPECIFICATIONS: - Western sizes - Small: (51-55cm) - Medium: (55-59cm) MIPS AIR NODE™ Mips Air Node™ is a super light and slim helmet security system that moves 10-15 mm in relation to the helmet’s energy-absorbing layer, reducing the rotational forces that are otherwise transmitted to the brain during impact. Fully integrated into the helmet’s padding, Mips Air Node™ is as light as possible and designed to fit each individual helmet model and size, making it virtually invisible until needed. MAGNETIC FIDLOCK® Magnetic Fidlock® helmet buckles are intuitive, pinch-free, and can be opened or closed with one hand, even while wearing gloves. 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.
$169.00
Cooler, Faster in a Protective Package The trailblazing A2 is Troy Lee Designs’ MTB trail helmet that checks all the boxes. Its stylish shell not only incorporates huge intake and exhaust ventilation ports, but it also comes with the very best in impact protection. From breakaway visor screws and the innovative MIPS® system and an industry-first dual-density EPP + EPS liner that protects against both high and low-speed impacts; this is a helmet that doesn’t take your safety lightly. Add in an adjustable strap and X-Static® Pure Silver comfort liner and the comfort is every bit on par with the protection. - MIPS (Multi-directional Impact Protection System) - Patent pending, industry-first dual density EPP = EPS impact liner - Innovative break-away visor screws help reduce the likelihood snagging during a crash - Low-profile, semi-adjustable strap dividers - X-Static® Pure Silver comfort liner
$69.99
We are super excited to announce the launch of Kali’s all new Composite Fusion helmet, the Pace. This in-molded helmet puts our Low Density Layer (LDL) technology in your hands at an affordable price point to ensure that even on the most leisurely of rides, you've got the linear and rotational protection expected from a Kali lid. "This is a great everyday, go anywhere helmet." - Brad Waldron, Kali Founder - Technology: LDL, Composite Fusion - Features: Break-away Visor, Anti-Microbial Pads, Locking Buckle and Slider - Material: PC Shell, EPS Foam - Vents: 15 - Weight: 286g / 10.1oz - Certification: EN 1078, CPSC - Intended Use: Recreational, X-Country, Trail - Small/Medium = 54 – 58cm - Large/X-Large = 58 – 62cm
$109.99
The M1 Full Face Helmet is perfect for anything from racing to full days of uplifting or bike park laps. Our M1 Helmet is the ideal helmet to keep you protected and comfortable. Features: - Lightweight ABS Shell - 17 Vents provide cool air intake and heat exhaust - Large eye port for greater field or vision and improved goggle fit - 4 colors - 7 sizes - Complies to CE, SPSC and AS Standards
$50.00
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
$80.00
All the elements come together in the Pace, a Composite Fusion trail helmet that is so light and comfortable you'll forget you're wearing it. - Features LDL, proprietary multi-G impact technology - Break-away visor - Removable and washable liner - Anti-microbial pads resists odors - Locking sliders - Micro-fit closure system - PC shell and under wrap - EPS foam
$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
$190.00
Designed with the speed of pro riders in mind, the Bluegrass Rogue Core MIPS is sharp, bold, and alternative. It's designed to properly protect the most sensitive head areas, the back, and the temples. - The Rogue Core Mips exceeds worldwide certifications and performs best at both linear and rotational impact thanks to its meticulously engineered EPS shell and the MIPS-C2® brain protection system attached inside the helmet - The visor is designed to enhance safety and protect from branches - In the event of a crash, the visor will adapt to the shell of the helmet to help withstand extra rotational forces transferred to the neck - The Safe-T Heta retention system provides an exceptional fit and keeps the helmet stable on the head - The 360° head belt ensures that there are no pressure points on the skull, while vertical adjustments provide a custom fit - The edge at the back of the helmet is designed to properly keep the goggle strap in place - Sunglasses can be securely docked into the two visor vents - The straps anchors are embedded into the EPS and you can quickly fasten them thanks to the Fidlock® magnetic buckle, even while wearing gloves
$399.99
- Pro Fit modulating comfort liner - 360 deg. Turbine Technology reduces peak brain rotational acceleration up to 40% - Breakaway visor function for rotational reduction in a crash - Moisture wicking breathable anti-odor and washable liner fabric
$30.00 $100.00 70% Off
With authentic off-road style and a comfortable fit, this helmet deLivers it all for aspiring adventurers. Integrated features including a camera mount and compatibility with the Giant Numen Link taillight make it easy to customize your ride. - We've got you covered! 1 year crash replacement program. - Trail specific design. Purpose built for aggressive trail and enduro riding. Rail features a new shape with extended rear coverage. - A total of 18 vents with straight, non tapered walls, designed and positioned for off-road performance. The size and shape of the vents helps guide airflow through interior channels to maximize ventilation at low and high speeds for better cooling - Cinch Pro Fit system. - Integrated magnetic mount for the Numen+ Link and Recon TL - 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
$379.00
The MET Trenta 3K Carbon Mips® is a high performance road helmet designed with elite cyclists and worn to victory at Le Tour de France and the monuments of Liège-Bastogne-Liège and Il Lombardia. Engineered to keep your head fresh and save you energy with every pedal stroke, the MET Trenta 3K Carbon Mips® is the most advanced road cycling helmet we have ever made, now upgraded with the addition of Mips AIR®, the lightest and most advanced rotational management system.
$89.99
- Zip Mold + construction - EZ-Fit retention system - 13 vents - Bike light compatible - Removable flip visor - CPSC standards EN1078 Helmet sizing: - Small: 52 - 55.5cm - Medium: 55.5 - 59cm - Large: 59 - 62cm
$79.99
The Nutcase Street Helmet collection combines the industry leading safety feature MIPS with original Nutcase inspiring designs. Featuring an improved retention system to provide a secure, comfortable fit and 2x the reflectivity for visibility on the road. 11 air vents increase the airflow to keep your brain cool and creative designs to keep you looking even cooler. - Equipped with MIPS (Multi-directional Impact Protection System) designed to reduce rotational forces that can result from certain impacts - High performing injection molded ABS shell and tuned EPS foam to keep you safe on the road - Improved ventilation to keep you cool - Premium Fidlock magnetic closure for one handed snap and go buckle - 3 piece internal heat sealed pads to provide next to brain comfort - Simple dial adjustable fit system provides safety, individualized fit and comfort - 2x reflectivity for increased visibility on the road - Eleven vents with internal channels in EPS for ventilation - Visor Included - CPSC 16 CFR 1203 and ASTM F1492 certified for cycling, scooting, and skating
$99.99
All-day comfort with premium head and brain protection. The Leatt All-MTN 2.0 helmet has a lower rear shell, than its trail brother the Trail 2.0 helmet. This rear coverage offers greater protection for faster, more aggressive riders. 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. 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 2.0 All MTN helmet is the helmet you want. Details: - Lightweight 2-piece polymer shell in three sizes - 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 375g (0.83 lbs) - Certified and tested: AS/NZS 2063:2008, EN1078, CPSC 1203
$120.00
The Traffic 2.0 is specifically designed to keep you safe and sound on any and all of your E-Bike adventures. Regardless of where you find yourself pedaling, whether it’s work, the park, the grocery store or just taking the opportunity to get a little fresh air, you should be sure to strap on your lid. And may we recommend the Traffic 2.0 to you. The Traffic 2.0 is stylish, comfortable, comes with a built-in rear blinky light to keep you visible and safe, our QuadCore Low Density Layer, and a NTA 8776 Dutch E-Bike safety rating. Pull on the Traffic and get outdoors. Micro USB sold separately. - Composite Fusion - QuadCore Low Density Layer - BioDome - Snap-Fit Removable Visor - Anti-Microbial Pads - Locking Sliders - Micro Fit Closure System - WEIGHT: 345 g / 12.2 oz - CERTIFICATION: CPSC, EN 1078, NTA 8776
$50.00
If you’re looking for a classic bucket for your next trip to the skate park or pump track, look no further. The Maha 2.0 also comes with Anti-Microbial Pads and Locking Sliders. - ABS Shell - Anti-Microbial Pads - Adjustable Sliders - Dial Fit System - WEIGHT: 375 g / 13.3 oz - CERTIFICATION: CPSC, EN 1078
$359.95
Lightweight, next-level full-face helmet. The Proframe RS Helmet takes the lightweight breathability of the Proframe and takes it to the next level of safety and performance. It features the all-new Mips® Integra Split protection system, which combines a dual-density foam - for high and low-speed impacts - and a low friction layer between the two layers designed to reduce rotational forces in a crash that would otherwise be transmitted to the brain. Key Features and Specifications: - BOA® fit system for class-leading fit and security - Equipped with Mips® Integra Split low friction layer - Dual-density foam for high and low-speed impacts - 3-position adjustable visor compatible with goggles - Removable under-visor GoPro mount included - Increased ventilation and decreased surface contact area for improved cooling - Ionic+ anti-microbial liner to reduce odor - Multi-sized cheek pads to optimize fit - Fidlock® magnetic closure system on chin strap Weight: 820 g (size medium) Certifications: ASTM F1952 - DH Certified ASTM F2032 EN 1078:2012 + A1:2012 AS/NZ 2063-2020 CPSC 1203 How to Dial Your Fit: - BOA® dial: 52 micro adjustments - counterclockwise to loosen, clockwise to tighten - allows for a precisely dialed fit. Adjust while wearing the helmet. - Back cradle: four adjustment points move the cradle up or down your head to ensure the best fit possible. - Cheek pads: two sets of cheek pads are included with the helmet - a preinstalled thin pad set and an optional thick pad set for a more snug fit. Note: Avoid exposure to aerosol sprays like bug repellent and sunscreens as they can cause your helmet's finish to peel Materials: EPS, PC, PA, EPP, polyester
$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
$224.95
Full coverage open-face mountain bike helmet. Bump up your protection level for enduro and trail riding with the top-rated Dropframe Helmet, delivering added coverage for your head, ears, and jaw. This 3/4 enduro helmet features Mips® protection, our dual-density Varizorb™ EPS liner, and more coverage than a traditional open-face 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 - 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 - Removable anti-microbial and moisture-wicking liner - Includes additional pads for a custom dialed fit Materials: 31% EPS, 16% TPE, 14% polycarbonate, 10% PA, 6% polyurethane foam/polyester *Note: Avoid exposure to aerosol sprays like bug repellent and sunscreens as they can cause your helmet's finish to peel
$219.95
Key Features: - Mips® equipped - BOA® Fit System to fine-tune your fit - FIDLOCK® SNAP magnetic buckle for quick and secure operation - Integrated sunglasses holder Versatile, lightweight trail helmet The all-new Crossframe Pro Helmet is bred for elevated heart rates, ?at-out sprints, and everything in between. Lightweight, versatile, and crafted with Mips® and BOA®, this helmet is ready for any trail that you are. 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 - Dual-density Varizorb EPS provides improved protection by spreading forces of impact across a wider area - FIDLOCK® SNAP helmet buckle provides quick and secure entry and exit, even while wearing gloves - Strap divider adjustment for repositioning the angle of the chinstrap - Removable, washable Ionic+® liner is anti-microbial and manages odor while wicking moisture away from the head - Optimized venting with channeled, in-molded EPS provides efficient cooling - BOA® Fit System with micro-adjustability allows you to fine-tune your fit on the fly - Rear cradle adjustment for setting the BOA dial to an ideal position - TPU vent inserts to keep your sunglasses securely stored when not in use
$109.99
The all-new Liv Rail Mips Helmet features the latest in high-performance off-road technology. Purpose-built with extended bottom shell design for additional back-of-head coverage plus the Integrated Mips Air Node technology to offer the best rotational impact protection. The 4-position rear height adjustment provides an optimal secure fit every time, sweat-blocking brow pads and an anti-microbial strap bring comfort even when things heat up. The ultimate helmet for riders who demand the perfect combination of comfort, fit, and increased protection. 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. SPECIFICATIONS: - Western sizes - Small: (51-55cm) - Medium: (55-59cm)
$100.00
All the elements come together in a Composite Fusion trail helmet that is light yet so comfortable you'll forget you're wearing it. Features LDL, Kali's proprietary multi-G impact technology. - Break-Away Moto Style Visor - Removable/Washable Liner - Anti-Microbial Pads/Bug Liner - Locking Buckle & Sliders - Micro-Fit Closure System Material: - PC Shell & Under wrap - EPS Foam Certifications: - CPSC - EN 1078 Sizing: - Small/Medium = 55 – 61cm - Large/X-Large = 60 – 63cm
$199.99
FOR DEMANDING TRAILS The CliffHanger is the flagship trail model in the ABUS MTB series. When you're riding up and down steep hills on an enduro bike, the MTB helmet offers reliable protection. Lighter, better ventilated and with an adjustable TriVider webbing spreader—the CliffHanger scores with these features. The special MTB adjustment system also ensures that the helmet sits comfortably and firmly on the head when rattling through the wildest of rock gardens. The inner shell made of EPS hard foam is foamed into a three-part outer shell, making a lightweight and sturdy helmet. The existing Multi-directional Impact Protection System (MIPS) can reduce energy by up to 40 percent in the event of an oblique impact. With the CliffHanger, we have succeeded in developing a helmet that offers virtually perfect conditions for high speeds and demanding trails. - Multi-Shell In-Mould for a permanent bond between the outer shell and the shock-absorbing helmet material (EPS) - Zoom Ace MTB: Height-adjustable adjustment system to fit the head circumference - Ponytail compatibility: Helmet well suited for ponytail wearers - Laterally adjustable, non-slip TriVider strap system - QUIN ready—easy upgrade with the separately available QUIN chip for fall detection - MIPS: Impact protection that protects the brain, especially when the cyclist's head hits the ground at an angle during a fall. - ActiCage: Structural reinforcement integrated in the EPS to optimise stability - Moulded lower shell for added durability - Height-adjustable visor - GoggFit: Device that allows a pair of goggles to be fixed to the helmet when the athlete doesn't need them while riding - Ventilation: excellent ventilation through 8 air inlets and 6 air outlets - FidLock magnetic buckle
$159.99
- Lightweight ABS shell - Quick release liner for easy washing - 23 Large freeflow vents with internal channels for maximum cooling - Lightweight ABS shell - Quick release liner for easy washing - 23 Large freeflow vents with internal channels for maximum cooling - Crash release visor system - Easy position visor, no bolts needed - D Ring closure - Certified: CPSC Bicycle & ASTM F1952-15 (Downhill) Sizing: - Small = 57 – 58cm - Medium = 59 – 60cm - Large: 61 – 62cm - X-Large: 63 – 64cm - XX-Large: 65 – 66cm
$299.00
The MET Manta MIPS defines the MET aesthetic with its highly contemporary design and aerodynamic engineering. Featuring the MIPS-C2 rotational management system, the MET Manta MIPS is able to slide in the case of a crash, redirecting damaging rotational motion. MIPS is a brain protection system—engineered to add at least 10% 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 Fidlock magnetic buckle makes it easier and faster to fasten the helmet. Despite being primarily an aero helmet it is also well ventilated. We've engineered the internal shape to channel the air, while MET's signature NACA Vent works in synergy with the specially positioned exhaust ensuring a constant airflow through the helmet, without catching the wind and creating drag. - In-mold polycarbonate shell with EPS liner - MIPS C2 rotational management system is engineered to add protection in case of certain impacts - Exceptionally comfortable and secure on the head thanks to refined internal shape - MET Safe-T Orbital Fit System - 360° head belt, and vertical and occipital adjustments offer a customized fit - Air Lite straps with adjustable divider maximize aerodynamic and comfort - Fidlock Magnetic Buckle makes it easier to secure the helmet - 15 vents are internally engineered with an air channeling system to improve ventilation and comfort - Sunglasses ports securely dock sunglasses when climbing or resting - Tube-shaped tail to improve aerodynamics - Reflective rear stickers - Certifications CE; AS/NZS; US Sizing: - Small/Medium = 52 – 56cm - Medium/Large = 56 – 58cm - Large/X-Large = 58 – 61cm