Adults

The Quantum WaveCel is a 5-star rated mountain bike helmet with updated WaveCel safety technology that's lighter and cooler than ever. This do-anything helmet features a well-ventilated design with recessed channeling to provide more airflow on your warmest rides. Plus, finding the perfect fit is easy with the Headmaster III Fit System and a three-position adjustable visor. Storage channels make it easy to store your sunnies mid-ride. Product details: - 5-star safety rating from Virginia Tech with lighter and cooler WaveCel technology - New extended coverage provides greater protection than the prior generation - Front vents and channel system with 10% larger cells for more airflow and efficient cooling - Headmaster III fit system provides simple and secure one-handed adjustability - Lay-flat camlock straps reduce twisting and binding to maximize comfort and fit - Three-position adjustable visor with dedicated sunglasses storage on helmet - Crash Replacement Guarantee provides a free replacement in the event of a crash within the first year of ownership - Complies with U.S. CPSC safety standards for bicycle helmets for persons age 5 and over

The Rally WaveCel Mountain Bike Helmet is 5-star rated by Virginia Tech and features updated, lighter, and cooler WaveCel safety tech. You'll love how easy it is to dial in the perfect fit with a BOA® Fit System, lay-flat camlock straps, and a Fidlock magnetic buckle. Plus, the goggle friendly three-position visor has built-in sunglass storage and the removable Blendr mount makes it easy to mount a Trek light or GoPro. Plus, the deeper rear coverage offers additional protection, and two front-facing vents are strategically placed to offer more airflow to make Rally WaveCel feel cooler and look the part as well. Product details: - 5-star safety rating from Virginia Tech with lighter and cooler WaveCel technology - Deeper rear coverage provides added protection - Front vents and channel system with 10% larger cells for more airflow and efficient cooling - Excellent fit and comfort via BOA® fit system, lay-flat camlock strap, and Fidlock strap buckle - Goggle compatible three-position visor with built-in sunglass storage - Removable Blendr magnetic mount system easily integrates a GoPro camera or Trek lights - Crash Replacement Guarantee provides a free replacement in the event of a crash within the first year of ownership - Complies with U.S. CPSC safety standards for bicycle helmets for persons age 5 and over

A comfortable, versatile helmet with clean aesthetics and the added protection of Mips. Style, comfort, and protection for any ride The Trek Solstice Mips helmet is the perfect choice for riders who want to dabble in road and trail riding. It's super comfortable, has an easy to use fit system, and features a simple, clean aesthetic that easily transitions from path to pavement. This helmet also features a Mips safety system, which is a helmet technology designed to help protect riders from rotational forces that occur during some cycling-related accidents. Solstice Mips has also earned a 5-STAR safety rating from Virginia Tech. - Mips safety system helps provide additional protection from rotational forces in the event of certain cycling-related accidents - Refined styling with removable visor easily transitions from road to trail - Large vents and recessed channeling keep you cool on warm days - Trek Headmaster 3 fit system provides simple and secure adjustability with just one hand - Soft, comfortable helmet pads wick moisture and are easy to wash after a full day of fun

A stylish road helmet with advanced WaveCel technology that balances comfort and performance for all riders who value safety. A MAJOR ADVANCEMENT IN THE PROTECTION AGAINST CYCLING-RELATED HEAD INJURIES Starvos WaveCel is a versatile, high-value cycling helmet for new-to-seasoned riders who want WaveCel, a leading technology in the protection against cycling-related head injuries. WaveCel is a collapsible cellular structure that lines the inside of the helmet. This Trek-exclusive technology disrupts the safety standards the industry has accepted for over 30 years. PRODUCT DETAILS - WaveCel advanced helmet technology - Intuitive, one-handed Headmaster fit system makes adjustments easy - LockDown dividers make helmet strap management clean and easy to adjust - Soft, comfortable, and moisture-wicking washable helmet pads - Available in XS and XL sizing - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership - Complies with U.S. CPSC safety standards for bicycle helmets for persons age 1 and over

Free Accident Replacement | 110% Carbon Offsets | Safety Certified Engineered for performance, the Chapter Collection integrates elevated utility into your daily riding uniform to always keep you moving forward. MIPS Add an extra layer of protection with the integrated Mips safety system, designed to reduce the rotational motion of certain impacts that may otherwise be transferred to your head. MULTI-USE MAGNETIC LIGHT Ride smoothly from day to night with an included 30 lumen taillight that magnetically attaches to the helmet or multi-use adapter. PREMIUM VISORS Reduce glare and increase your field of vision with visors in elevated finishes, including hand-painted tortoise shell, matte black, and metallic rose gold. SECRET POPLOCK The most convenient and secure way to leave your helmet behind. Access the hidden channel behind the logo mark, and thread your U-lock or chain lock through. Backed by our Anti-Theft Guarantee. ACTIVE VENTILATION 8 strategically placed vents actively capture airflow and pass it through the interior cooling channels – developed to keep you cool on your long rides. - Integrated Mips Safety System for added protection against rotational forces - 30 lumen magnetic taillight with 1 hr runtime solid, 2 hrs flash - Multi-use adapter to attach the taillight to your bike - Visors in premium finishes to increase your field of vision - Secret PopLock for securing your bike helmet with your lock - Integrated dial fit system for precise adjustments - One-handed magnetic fastener and nylon straps - Active ventilation with 8 vents and internal channeling - Lightweight helmet at 360g (S), 370g (M), or 410g (L) - Navy blue shell with hand-painted tortoise shell visor - Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older - Certified for CE and CPSC standards for cycling

Free Accident Replacement | 110% Carbon Offsets | Safety Certified Designed for urban cycling and skating, the minimalist Heritage bike helmets are our original collection, inspired by the simplicity of vintage moto lids and the heritage colorways of the 50s and 60s. SECRET POPLOCK The most convenient way to leave your helmet behind. Access the hidden channel behind the logo mark, and pop your U-Lock or chain lock through. Backed by our Anti-Theft Guarantee. MAGNETIC BUCKLE Lock it in with a one hand fastener guaranteed to leave your finger pinch-free. Safety certified, German engineered. DIAL FIT SYSTEM Dial in the proper fit for every ride. With our easily adjustable fit system, you can be confident that your helmet is snug and secure. VEGAN LEATHER STRAPS Stay comfortable and sweat-free with these eco-friendly microfiber vegan straps, created with animals and the environment in mind. VENTS Ventilation without the sci-fi design. You'll keep cool with seven air vents and three cooling channels. - Secret PopLock for securing your bike helmet with your lock - Vegan leather straps - Integrated dial fit system for precise adjustments - One-handed magnetic fastener - 7 vents with internal channeling - A built-in low-profile visor - Inspired by vintage motorcycle designs with a black shell and white moto trim - Lightweight helmet at 410g (S), 460g (M) or 490g (L) - Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older - Certified for CPSC and ASTM standards for cycling and roller skating, and skateboarding

Free Accident Replacement | 110% Carbon Offsets | Safety Certified Designed for urban cycling and skating, the minimalist Heritage 2.0 bike helmets are our original collection, inspired by the simplicity of vintage moto lids and the heritage colorways of the 50s and 60s. SECRET POPLOCK The most convenient way to leave your helmet behind. Access the hidden channel behind the logo mark, and pop your U-Lock or chain lock through. Backed by our Anti-Theft Guarantee. MAGNETIC BUCKLE Lock it in with a one hand fastener guaranteed to leave your finger pinch-free. Safety certified, German engineered. DIAL FIT SYSTEM Dial in the proper fit for every ride. With our easily adjustable fit system, you can be confident that your helmet is snug and secure. VEGAN LEATHER STRAPS Stay comfortable and sweat-free with these eco-friendly microfiber vegan straps, created with animals and the environment in mind. VENTS Ventilation without the sci-fi design. You'll keep cool with seven air vents and three cooling channels. - Secret PopLock for securing your bike helmet with your lock - Vegan leather straps - Integrated dial fit system for precise adjustments - One-handed magnetic fastener - 7 vents with internal channeling - A built-in low-profile visor - Inspired by vintage motorcycle designs with a black shell and white moto trim - Lightweight helmet at 410g (S), 460g (M) or 490g (L) - Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older - Certified for CPSC and ASTM standards for cycling and roller skating, and skateboarding

Whether your youngest rider is travelling in a baby seat, cargo bike, or trailer, Pnut is designed to provide premium comfort and top-rated protection with kid-specific features to maximize your time outdoors together, stress-free. Thoughtfully designed to make gearing your youngest rider up as easy and painless as possible so you can spend more time on the fun part. This unisize helmet features an automatic EZ Fit system that will keep adjusting for a secure fit as they continue to grow, and a user-friendly cheek buckle to minimize tearful chin-pinching. Deeper temple coverage adds increased protection around the head's most sensitive area, while the built-in insect netting brings cool breezes in while keeping bugs and branches out. A flatter shape at the back of the helmet lets your child sit up in their seat and soak in the views more comfortably. This lightweight helmet is certified by the Consumer Products Safety Commission (CPSC) for children ages 1 and up. Enjoy peace of mind while biking with your little one and leave the protection up to us. Better by design, KinetiCore is the world's first responsibly designed and fully Integrated Rotational Impact Protection technology that's built right into the helmet instead of added on after. - WEIGHT: 240g - MATERIAL: EPS Foam, Polycarbonate, Nylon - FIT SYSTEM: EZ Fit - VENTILATION: 12 - ROTATIONAL PROTECTION: Lazer KinetiCore - CERTIFICATION: CPSC Features: Baby Seat Friendly Features a flatter shape at the back to make sitting and enjoying the sights in trailers or baby seats more comfortable. Less Pinches, Less Tears Skip the chin-pinching drama with a child-friendly cheek buckle. Easy Fit No-fuss Automatic EZ Fit system makes finding a secure fit effortless. Just open it, put the helmet on, and it'll automatically adjust to provide the right fit for your child. No More Bugs A built-in insect net keeps bugs out while letting the breeze in, minimizing distractions and irritations. Integrated Rotational Impact Protection KinetiCore Controlled Crumple Zones absorb the force of both direct and rotational impacts in the event of a crash to re-direct energy away from your head, protecting you when you need it most. Increased Coverage Tip-overs happen. This helmet provides increased coverage around the temples, offering extra protection across the head's most sensitive area. Unisize One size fits all. The helmet shell and fit system is designed to accommodate a wide variety of head sizes and shapes. Lightweight Design Built 14% lighter than the previous Lazer Pnut MIPS helmet and with less plastics, its reduced carbon footprint design provides top-rated protection without unnecessary weight.

Flight Helmet from Fox Racing.

It doesn't matter if you're a casual rider or committed commuter. Stay safe and protect your head with an Electra helmet. - Durable ABS hardshell and EPS foam liner for maximum comfort and protection - Fit retention system with reflective bubble decal - Authentic Electra graphics - Secure magnetic Fidlock buckle - Heat sealed and washable padding liner for added comfort - Reflective straps - Size SMALL fits circumference 48cm - 54cm and hat sizes 6 1/2 - 6 3/4 - Size MEDIUM fits circumference 55cm - 58cm and hat sizes 6 7/8 - 7 1/4 - Size LARGE fits circumference 59cm - 61cm and hat sizes 7 3/8 - 7 5/8 - Small size generally fits children while medium and large sizes fit adults

Keep it safe with an Electra Commute MIPS Helmet. The perfect balance of form and function, these stylish and sleek helmets are our most advanced yet. - MIPS Brain Protection System - Boa System ensures easy adjustment and secure fit - Camera/light mount and reflective visor - Magnetic Fidlock slide buckle - In mold EPS with PC shell for maximum comfort and protection - Certified to NTA 8776 standard and is ideal for e-bike riders - Size small fits circumference 48 cm - 54 cm and hat sizes 6 1/2 - 6 3/4 - Size medium fits circumference 55 cm - 58 cm and hat sizes 6 7/8 - 7 1/4 - Size large fits circumference 59 cm - 61 cm and 7 3/8 - 7 5/8 - Small size generally fits children while medium and large sizes fit adults

If you're going to wear a helmet on your Electra, wear an Electra on your helmet. - Durable ABS hardshell for protection and EPS foam liner for security - Detachable visor for when you want sun protection, velcro for when you don't - Fit retention system provides secure and snug fit - Easy to use magnetic Fidlock buckle - Size SMALL fits circumference 48cm - 54cm and hat sizes 6 1/2 - 6 3/4 - Size MEDIUM fits circumference 55cm - 58cm and hat sizes 6 7/8 - 7 1/4 - Size LARGE fits circumference 59cm - 61cm and hat sizes 7 3/8 - 7 5/8 - Small size generally fits children while medium and large sizes fit adults

The gnome protects your dome. Helmets don't have to be boring. Fortunately, boring isn't in our vocabulary. Choose between awesome colors and graphics that fit your style. Electra helmets: Making messy hair cool since 2016. - Durable ABS hardshell for protection and EPS foam liner for security - Retention system provides secure and snug fit - Easy-to-use magnetic Fidlock buckle - Size small fits circumference 48cm - 54cm and hat sizes 6 1/2 - 6 3/4 - Size medium fits circumference 55cm - 58cm and hat sizes 6 7/8 - 7 1/4 - Size large fits circumference 59cm - 61cm and 7 3/8 - 7 5/8 - Small size generally fits children while medium and large sizes fit adults - Fit System: HB-80 - Pad Material: Moisture-wicking pads - Buckle Type: Fidlock buckle - Includes: Fabric visor

We love what's inside of that head of yours. Keep it safe with an Electra Commute MIPS Helmet. The perfect balance of form and function, these stylish and sleek helmets are our most advanced yet. MIPS (Multi-directional Impact Protection System) was developed by brain surgeons and scientists to help reduce rotational forces on the brain caused by angled impacts to the head. Electra helmets: Making messy hair business professional. - MIPS Brain Protection System - Fit retention system ensures easy adjustment and secure fit - Magnetic Fidlock slide buckle - In mold EPS with PC shell for maximum comfort and protection - Certified to NTA 8776 standard and is ideal for e-bike riders - Fit System: HB-80 - Pad Material: Moisture-wicking pads - Buckle Type: Fidlock buckle - Includes: Fabric visor

Electra has always brought you the styles and functional designs you love in the world of cruisers. Now, with their Graphic Helmet, they keep you looking stylish while keeping your dome safe. This bold lid offers a broad variety of graphic choices so you can express yourself with gusto. - Durable ABS hardshell and EPS foam liner maximize comfort and protection - Fit retention system with reflective bubble decal - Secure magnetic Fidlock buckle - Heat sealed and washable padding liner for added comfort - Reflective straps - CPSC Adult Certified Size: - Small: 48-54cm - Medium: 55-58cm - Large: 59-61cm

Bee smart. Bee stylish. Helmets don't have to be boring. Fortunately, boring isn't in our vocabulary. Choose between awesome colors and graphics that fit your style. Electra helmets: Making messy hair cool since 2016. - Durable ABS hardshell for protection and EPS foam liner for security - Retention system provides secure and snug fit - Easy-to-use magnetic Fidlock buckle - Size small fits circumference 48cm - 54cm and hat sizes 6 1/2 - 6 3/4 - Size medium fits circumference 55cm - 58cm and hat sizes 6 7/8 - 7 1/4 - Size large fits circumference 59cm - 61cm and 7 3/8 - 7 5/8 - Small size generally fits children while medium and large sizes fit adults - Fit System: HB-80 - Pad Material: Moisture-wicking pads - Buckle Type: Fidlock buckle - Includes: Fabric visor

Ride smart. It's a no brainer. If you're going to rock a helmet on an Electra, rock an Electra on your helmet. Choose between awesome colors and graphics that fit your style. Electra helmets: Making messy hair cool since 2016. - Durable ABS hardshell for protection and EPS foam liner for security - Size small fits circumference 48cm - 54cm and hat sizes 6 1/2 - 6 3/4 - Size medium fits circumference 55cm - 58cm and hat sizes 6 7/8 - 7 1/4 - Size large fits circumference 59cm - 61cm and 7 3/8 - 7 5/8 - Small size generally fits children while medium and large sizes fit adults - Fit System: HB-80 - Pad Material: Moisture-wicking pads - Buckle Type: Standard buckle

Ride smart. It's a no brainer. Helmets don't have to be boring. Fortunately, boring isn't in our vocabulary. Choose between awesome colors and graphics that fit your style. Electra helmets: Making messy hair cool since 2016. - Durable ABS hardshell for protection and EPS foam liner for security - Safety, comfort and function for all riders - Complies with U.S. CPSC safety standards for bicycle helmets for persons age 5 and over.

Electra has always brought you the styles and functional designs you love in the world of cruisers. Now, with their Solid Color Helmet, they keep you looking stylish while keeping your dome safe. This understated, savvy lid offers a variety of sweet color choices to meet your style needs. - Durable ABS hardshell and EPS foam liner max comfort and protection - Fit retention system with reflective bubble decal - Solid color to match any bike. Well, at least your favorite bike. - Secure magnetic Fidlock buckle - Heat sealed and washable padding liner for added comfort - Reflective straps - CPSC Adult Certified Size: - Small: 48-54cm - Medium: 55-58cm - Large: 59-61cm

Ride smart. It's a no brainer. Helmets don't have to be boring. Fortunately, boring isn't in our vocabulary. Choose between awesome colors and graphics that fit your style. Electra helmets: Making messy hair cool since 2016. - Durable ABS hardshell for protection and EPS foam liner for security - Safety, comfort and function for all riders - Complies with U.S. CPSC safety standards for bicycle helmets for persons age 5 and over.

Ride safe. Ride majestic. Helmets don't have to be boring. Fortunately, boring isn't in our vocabulary. Choose between awesome colors and graphics that fit your style. Electra helmets: Making messy hair cool since 2016. - Durable ABS hardshell for protection and EPS foam liner for security - Size small fits circumference 48cm - 54cm and hat sizes 6 1/2 - 6 3/4 - Size medium fits circumference 55cm - 58cm and hat sizes 6 7/8 - 7 1/4 - Size large fits circumference 59cm - 61cm and 7 3/8 - 7 5/8 - Small size generally fits children while medium and large sizes fit adults - Fit System: HB-80 - Pad Material: Moisture-wicking pads - Buckle Type: Standard buckle

Ride smart. It's a no brainer. Helmets don't have to be boring. Fortunately, boring isn't in our vocabulary. Choose between awesome colors and graphics that fit your style. Electra helmets: Making messy hair cool since 2016. - Durable ABS hardshell for protection and EPS foam liner for security - Safety, comfort and function for all riders - Complies with U.S. CPSC safety standards for bicycle helmets for persons age 5 and over.

Ultra-versatile helmet that is light, cool, and sleek with the added protection of WaveCel advanced helmet technology and the convenience of magnetic light mounts. If you're going to get just one helmet, make it this one Whether your finish line is on the race course or at your front door, Bontrager's Circuit WaveCel delivers the right performance, comfort, and tech to be your go-to helmet for any ride. It's equipped with features any rider will appreciate on any terrain, like WaveCel technology, a BOA Fit System for superior comfort and security, and the Blendr mount system for easy light and camera integration. WaveCel is a collapsible cellular structure that lines the inside of the helmet. This Bontrager-exclusive technology disrupts the safety standards the industry has accepted for over 30 years. Product details - WaveCel advanced helmet technology - BOA Fit System lets you easily secure and adjust your fit with one hand - Blendr magnetic mount system easily integrates a GoPro camera and Bontrager lights - Made of 50% recycled EPS material - FlatStrap semi-fixed strap dividers lay flush and move fore and aft for a perfect fit - Soft, comfortable, moisture-wicking, and washable helmet pads - Reflective elements on the back of the helmet offer enhanced visibility - Crash Replacement Guarantee provides free replacement if your helmet is impacted in the first year of ownership

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

All-purpose, value-packed helmet balances performance and comfort. Value-packed protection Wear it and believe it. The Solstice is proof you don't have to spend a lot of money to get a great fitting, easy-to-use cycling helmet designed to keep you protected during all your bike riding adventures. Product details - Designed for larger vents and increased airflow while maintaining structural integrity - Built-in and removable visor options give you two choices for constant coverage - Intuitive, one-handed Headmaster fit system adjusts height and circumference - LockDown dividers make helmet strap management clean and easy to adjust - Internal, recessed channels move airflow over your head to keep you cool and dry - Soft, comfortable, moisture-wicking, and washable helmet pads - Crash Replacement Guarantee provides free helmet replacement if it is involved in a crash within the first year of ownership Specifications - Size (head circumference): Small/Medium (51-58cm); Medium/Large (55-61cm) - Fit system: Headmaster II - Pad material: Moisture wicking pads - Buckle type: Standard buckle - Includes: Visor plugs - Weight: 290g (Small/Medium)

A stylish road helmet with advanced WaveCel technology that balances comfort and performance for all riders who value safety. A major advancement in the protection against cycling-related head injuries Starvos WaveCel is a versatile, high-value cycling helmet for new-to-seasoned riders who want the added protection of WaveCel, a leading technology in the protection against cycling-related head injuries. WaveCel is a collapsible cellular structure that lines the inside of the helmet. This Bontrager-exclusive technology disrupts the safety standards the industry has accepted for over 30 years. Product details - WaveCel advanced helmet technology - Virginia Tech 5 STAR rating - Intuitive, one-handed Headmaster fit system makes height and circumference adjustments easy - LockDown dividers make helmet strap management clean and easy to adjust - Soft, comfortable, moisture-wicking, and washable helmet pads - Available in XL sizing - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership Specifications - Size (head circumference): Small (51-57cm) / Medium (54-60cm) / Large (58-63cm) / X-Large (60-66cm) - Fit system: Headmaster II - Pad material: Moisture-wicking pads - Buckle type: Standard buckle - Includes: Crash Replacement Guarantee - Weight: 300g (Small) / 335g (Medium) / 370g (Large) / 385g (X-Large)

Bontrager XXX WaveCel delivers high-performance protection and the best in aerodynamics and comfort. XXX is the WaveCel helmet of choice for the Trek-Segafredo men's and women's teams. WaveCel is a collapsible cellular structure that lines the inside of the helmet. This Bontrager-exclusive technology disrupts the safety standards the industry has accepted for over 30 years. - WaveCel advanced helmet technology - The Boa System lets you easily secure and adjust helmet fit with just one hand - Easy-to-use adjustable strap dividers allow for a fine tune fit - An aerodynamic shape helps you outsmart the wind and ride faster - AgION antimicrobial pads wick away moisture and eliminate odors naturally - Additional NoSweat pad with silicone channel keeps sweat out of eyes for constant clarity - Team Trek-Segafredo sticker kit included with Viper Red, White, and Visibility Yellow colorways - Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownership Sizing: - Small: 51-57cm - Medium: 54-60cm - Large: 58-63cm

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

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

An aerodynamic road bike helmet that is undeniably fast, yet surprisingly light, cool, and comfortable. Less wind. More win. When speed is your top priority and every watt counts, reach for the helmet that'll cut through the wind to save you seconds. Ballista is Trek's fastest, most aerodynamically-advanced helmet. Ballista is light, cool, comfortable, and engineered with a fully-integrated Mips Air safety system that's designed to help keep you safer. Product details: - Trek's fastest, most aerodynamic helmet will save big watts and shave crucial seconds - An excellent ventilation system makes this aero helmet surprisingly cool and comfortable - The Mips Air system is light, cool, and designed to help reduce rotational forces - The single-lace BOA® fit system is fully adjustable to provide a custom, 360° fit - Rubberized sunglasses docking port provides secure and easy-to-use storage - Beveled front edge improves field of view while riding on the hoods and in the drops - 5-STAR Virginia Tech safety rating - Complies with U.S. CPSC safety standards for bicycle helmets for persons age 1 and over