Helmets

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. Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older. - 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. - Average weight: 380 grams (medium). - 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 your riding acoustic or e-MTB, the Tactic is certified to NTA 8776. - 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. - 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.

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

- 15% lighter than the classic Macon - Increased protection due to the Ribbed EPS liner - Multisport configuration - Construction—Thin shell - EZ-Fit System - Compatible with Bern Asteroid Light - Adjustable strap divider - Compression-molded pads - Visor compatible - Average weight: 376g - MIPS: multi-directional Impact Protection System - 12 vents Helmet sizing: - Small: 52 - 55.5cm - Medium: 55.5 - 59cm - Large: 59 - 62cm

- Ez-fit system - Lightweight ribbed eps liner - Multisport configuration - Asteroid light compatible - Snowsport knit compatible - 12 Vents - Average Weight: 376g Helmet sizing: - Small: 52 - 55cm - Large: 59 - 62cm

- 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

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.

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). - MIPS-equipped. - Integrated LED tail light for increased visibility in 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.

The Kali Grit Helmet is designed for performance road cycling. It features a Rheon Low-Density Layer (LDL) to protect you in the case of low-G linear or rotational impacts, and Kali's proprietary Supervents to increase overall strength and help with ventilation. The Grit also features the Frequency Fit System, with vertical adjust and dial retention, Fixed Strap Intersections, Unibody Construction and a Rollcage Internal PC Bridge, for added strength. - Rheon Low-Density Layer (LDL) reduces rotational impact forces up to 25% and reduces low-g linear forces up to 30% - Supervent: injection molded skeletal structure for added strength and larger volume intake vents - Frequency Fit System, with dial and vertical adjust offers three positions for maximum comfort and fit - Fixed Strap Intersections: Stops the straps from twisting, while keeping them flush against your face - Unibody Construction: Couples the upper and lower shells for a dialed fit and finish, while adding strength - Rollcage Internal PC Bridge: Used to increases the overall strength of the helmet

PROTECTED ALL AROUND With the AirDrop, ABUS offers its first full-face helmet that provides the best protection even for your most daring jumps. Enduro racers, downhillers, E-MTB riders and alpine adventurers are always pushing the limits of mountain biking. Increased protection used to mean heavy, hot and claustrophobic full-face helmets. The ABUS AirDrop, by contrast, features ASTM-certified DH safety levels with exceptional ventilation and trail-friendly weight. New technologies like our EVA collarbone protector inserts, breakaway visor attachments and side communication channels bring real benefits to bike parks and the backcountry. If gravity is the thrill you need, the AirDrop is the MTB helmet for you. - In-mould manufacturing for a durable connection to the outer shell with shock-absorbing helmet material (EPS) - Zoom Ace FF: Adjustment system to fit the head circumference - Collarbone protection edges - QUIN ready—easy upgrade with the separately available QUIN chip - Breakaway visor bolts - ASC—ABUS communication channels increase spatial awareness - Breathable cheek pad inserts - Design suitable for spectacles - Double D-ring buckle system - Ventilation: excellent ventilation through 11 air inlets and 6 air outlets

Inspired by our award-winning professional cycling helmet the Trenta, the MET Vinci MIPS exceeds the standards of comfort and safety, delivering an unmatched price-performance ratio. Featuring the MIPS-C2 brain protection system, the Vinci is able to slide against the head in the case of a crash, redirecting damaging rotational motion. The Vinci is also exceptionally lightweight and extremely comfortable to wear. The internal air-channeling works in synergy with the exhaust ports, maximizing ventilation. - 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 thanks to the refined internal shape - MET Safe-T DUO Fit System - 360° head belt and vertical adjustments offer a customized fit - Straps with adjustable divider maximize aerodynamics and comfort - Comfort pads are hand-washable - 16 vents are internally engineered for air channeling to improve ventilation and comfort - Reflective rear decals to enhance visibility in low-light conditions - Sunglasses ports to securely dock sunglasses when climbing or resting - Certifications CE; AS/NZS Sizing: - Small = 52 – 56cm - Medium = 56 – 58cm - Large = 58 – 61cm

Mindset Prevail 3/Evade 3/Tt5 from Specialized.

S-Works Prevail 3 Padset from Specialized.

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

The MET Roam MIPS is designed for all-mountain and enduro riding. The back of the head and the temples are especially in need of protection from impact, so we’ve increased the coverage around these key areas, without sacrificing the helmet’s light weight. The injection-molded visor is flexible to adapt to the shell of the helmet in a crash. This unique feature helps to manage extra rotational forces transferred to your neck. There are clips on the visor and a rear edge, which keep goggle straps in place during the ride, achieving ultimate compatibility with your eyewear. Featuring the MIPS-C2 rotational management system, the Roam is able to slide against the head in the case of a crash, redirecting damaging rotational motion. The MIPS-C2 solution separates the shell and the liner with a thin plastic Low Friction Layer (LFL). The Roam Mips features 22 vents that work together with the purpose-built internal channel to provide optimal airflow at high and low speed. The MET Roam has also been rewarded for its comfortable fit. The inner padding has an extended surface area which provides the perfect stability without disturbing internal airflow. - In-mold polycarbonate shell with EPS liner - Fully polycarbonate wrapped EPS liner enhances durability - Extended head coverage for more thorough head protection - Exceptionally comfortable and secure on the head thanks to a refined internal shape and stabilizing inner padding - MIPS-C2 Brain Protection System offers extra protection in the case of certain impacts - MET Safe-T Orbital Fit System - The 360° head belt with vertical and occipital adjustments help to maximize adjustability - The injection-molded visor is adjustable and flexible to avoid extra rotation of the neck in case of a crash - Integrated goggle strap clips and sunglass ports to securely dock eyewear when climbing or resting - 22 vents are internally engineered for air channeling to improve ventilation and comfort - Certifications CE; AS/NZS; US Sizing: - Small = 52 – 56cm - Medium = 56 – 58cm - Large = 58 – 62cm

The Hyban 2.0 combines a particularly robust, hard shell with huge air intakes. In combination with the bright, integrated 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 due to reflectors - 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 a customizable fit - Large, high-mounted, and integrated LED taillight with 180° visibility Sizing: - Medium: 52-58cm - Large: 56-61cm - X-Large: 58-63cm

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).

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

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

The MET Trenta MIPS a performance road helmet engineered to maximize ventilation and save you energy with every pedal stroke. Featuring the MIPS-C2 rotational management system, the MET Trenta MIPS is able to slide 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. Scientifically designed air vents harness the power of the Venturi effect, pushing out warm air within the helmet through specially positioned exhausts to ensure constant airflow. The tail of the helmet also features an aerodynamic design to effectively drive airflow. - 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 - 19 vents and an internal air channeling system are engineered to improve ventilation and comfort - Sunglass ports securely dock sunglasses when climbing or resting - Tube-shaped tail improves aerodynamics - Limited contact with the surface of the head helps to maximize the ventilation - Certifications CE; AS/NZS; US Sizing: - Small = 52 – 56cm - Medium = 56 – 58cm - Large = 58 – 61cm

Set your littlest riders on the path to two-wheeled freedom with the all-new Mio 2 helmet. Through an exclusive partnership with KTH Royal Institute of Technology (KTH) and Mips, we shared our helmet’s CAD designs and studied the malleable skulls of young children with Finite Element Analysis (FEA). Because toddler-aged children’s heads are softer and still growing, using low-density foam - and more of it - was the outcome of this partnership. DATA DRIVEN INNOVATION: Coming out of our KTH and Mips partnership, the Mio 2 had increased the amount of low-density foam inside by 16.5%, only growing the overall size of the helmet by 2.5%. COMFORT: The Mio 2 may have the latest and greatest technology inside, but that only matters when the helmet is worn properly. That’s why Mio 2 features specific toddler-oriented sizing and our SX headset fit system, to help it stay properly fitted and comfortable, whenever it is worn. The easy-to-use tri-fix web splitter makes getting a ‘fuss-free’ fit incredibly simple, all adding up to a helmet they’ll beg to wear. UNLEASH THEIR IMAGINATION: On the outside, the Mio 2 comes in energetic colors sure to inspire fun and creativity from adventure-hungry kids. The included sticker pack offers a retro vibe with a modern twist with bright graphics and lettering for even more personalization. After all, getting our young riders excited enough to want to wear their helmet every day is the number one goal. For helmets sold in the U.S. and Canada: Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 1 and Older. - Mips-equipped. - Headset SX fit system with toddler-oriented sizing that's designed for an easy and accurate fit. - In-molded shell improves strength and reduces weight. - Tri-Fix web splitter for improved comfort and ease of strap adjustments. - Reflective webbing and rear decal for increased visibility in low-light conditions. - 46-51 cm OSFM Toddler size, approximately up to age three. - Size: 18-20" / 46-51cm

The Status Downhill/BMX helmet redefines the standards for what a mid-level full-face helmet should be. Incorporating design cues from our championship winning Aircraft helmet, the Status offers elevated performance and comfort at an exceptional value. - Ultra-light design featuring fiberglass shell - Active cooling system maximizes airflow offering maximum ventilation while riding and also while rider is stationary - Washable comfort liner, cheek pads, and chin strap covers - Engineered with 2 shell sizes and 2 EPS sizes to achieve the perfect fit - Compatible with inflatable emergency helmet-release systems - Padded PU chinbar interior for enhanced impact protection - Adjustable visor with light-weight screws - Small = 55 – 56cm - Medium = 57 – 58cm - Large = 59 – 60cm - X-Large = 61 – 62cm

Replacement pads for all Specialized Airnet helmets.

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

- Lightweight polycarbonate shell full face protection - 17 vents provide cool air intake and heat exhaust - Foam padded internal muzzle - Large eye port for greater field of vision and improved goggle fit - Adjustable peak - Mesh backed covered vents stop debris getting through - Certified : CPSC Bike Sizing: - Small = 55 – 56cm - Medium = 57 – 58cm - Large: 59 – 60cm - X-Large: 61 – 62cm

Replacement pads for all Specialized Shuffle Youth helmets.

The MET Estro MIPS is a versatile road helmet ready for your longest day on the bike. As comfortable as a top-of-the-line helmet, its design is widely open to maximize ventilation at low speeds. With 26 vents, 17 of which are inlets and 9 are exhaust holes, all of them work in synergy with the internally engineered air channeling system to ensure maximum ventilation. The Estro MIPS is also exceptionally comfortable. The 360° head belt in the MET Safe-T Upsilon retention system ensures that there will be no pressure points on the skull, and its internal shape is welcoming for almost all different shaped heads. Featuring the MIPS-C2 brain protection system, the MET Estro MIPS is able to slide against the head in the event 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 front of the helmet features two dedicated ports for securely docking sunglasses while resting or climbing. The design reflects the purpose - to adapt to various uses and environments. Widely open, deeper coverage, a versatile visor, and a full polycarbonate wrap that makes it more durable by avoiding exposure of EPS surfaces to outdoor conditions. - In-mold polycarbonate shell with EPS liner - Full polycarbonate wrapped EPS liner to enhance durability - Extended head coverage for more thorough skull protection - MIPS-C2 Brain Protection System add protection in case of certain impacts - MET Safe-T Upsilon Fit System - 360° head belt and vertical adjustments offer a customized fit - Air Lite straps with adjustable divider maximize aerodynamics and comfort - Sunglass ports to securely dock sunglasses - 26 vents are internally engineered for air channeling to improve ventilation and comfort - Comfort pads are hand-washable - Certifications CE; AS/NZS; US

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

- Ez-fit system - 13 vents with increased airflow - Removable flip visor - Lightweight - Lay flat adjustable straps - Compression-molded pads - Asteroid light compatible - Cold weather bike knit compatible - Average weight: 305.5g Helmet sizing: - Small: 52 - 55.5cm - Medium: 55.5 - 59cm

Compatible with Shiner and Shiner Back lights - Rubber pad with loop straps to quickly mount and remove light for recharging - 50mm bolt spacing to fit most rear racks

The MET Eldar MIPS has been re-designed for young riders who are fearless and skilled. A high quality helmet for those who aspire to ride the Enduro World Series one day. With extended coverage of the head it offers ultimate protection for those who dare to do more. Featuring the MIPS-C2 brain protection system, the Eldar is able to slide against the head in the case of a crash, redirecting damaging rotational motion. - In-mold polycarbonate shell with EPS liner - Extended head coverage for more thorough protection - MIPS C2 rotational management system is engineered to add protection in case of certain impacts - Exceptionally comfortable and secure on the head thanks to its refined internal shape - 14 vents are internally engineered for air channeling to improve ventilation and comfort - MET Safe-T Twist 2 Fit System - 360° head belt reduces pressure points on the head - Straps with adjustable dividers offer a customized fit - Reflective rear decal to enhance visibility - Comfort pads are hand-washable - Weight: 305g Sizing: - One Size = 52 – 57cm