Helmets

The Convoy helmet provides mountain bikers an exceptional custom fit and elevated protection wrapped in Smith's signature style. By integrating Smith's proven VaporFit fit system with a MIPS liner system - the Signal delivers a tailor-made fit for every rider across four unique shell sizes. The Signal's AirEvac ventilation system and engirneered eyewear storage delivers the ultimate integration you expect from a s Smith helmet - PROTECTION: Lightweight in-mold construction, MIPS system available in all colors - FIT: VaporFit adjustable fit system, 21 optimized vents, Performance comfort lining, Ultra-light single layer webbing - INTEGRATION: AirEvac ventilation, Integrated visor, Ultimate eyewear integration - WEIGHT: (Size M, MIPS) 11oz / 300g - CERTIFICATION: CPSC, CE EN 1078, AS/NZS2063

Big berms, rock gardens or flowy rollers. No matter the trail, get after it with confidence in the Smith Engage mountain bike helmet. MIPS Brain Protection System helps reduce angled impact forces in the event of a crash, while the VaporFit dial adjustment and extended back coverage provide a locked-in feel. On hot days or exposed climbs, 20 fixed vents and our AirEvac ventilation system keep you cool and comfortable. Channels on the front make it easy to stow eyewear and a two-position visor rotates up for on-the-go goggle storage. PROTECTION: Lightweight in-mold construction, MIPS Brain Protection System reduces rotational forces caused by angled impacts to the head. FIT / INTEGRATION: VaporFit dial adjustment system offers 270-degree fit adjustment with the turn of a dial, Designed for ultimate integration with Smith performance eyewear and goggles for maximum comfort, venting and storage convenience, AirEvac ventilation system integrates with Smith goggles and eyewear for fog-free lenses FEATURES: 21 fixed vents for consistent airflow, Two-position adjustable visor, Performance comfort lining, Lightweight, low-bulk single layer webbing WEIGHT: (Size M, MIPS) 12oz / 350g CERTIFICATION: CPSC, CE EN 1078 SIZING: - Small: 51 – 55cm - Medium: 55 – 59cm - Large: 59 – 62cm

Ready, set, send. This next generation of our award-winning Smith Forefront mountain bike helmet has your back (and front, and sides) thanks to MIPS and complete Koroyd impact protection. Designed to work with goggles or sunglasses, the helmet vents warm air, eliminating foggy lenses so you'll feel confident even if your line of sight is less than ideal. And when your palms start to sweat right before you drop in, you'll stay cool thanks to a full 20 vents that keep the air flowing. The visor adjusts for easy goggle storage between laps, and you can slide your glasses for secure storage on the front or back. PROTECTION: Complete Koroyd coverage for lightweight, energy-absorbing and ventilated impact protection, MIPS Brain Protection System reduces rotational forces caused by angled impacts to the head, Integrated skeletal structure creates a roll cage for added strength and impact protection FIT / INTEGRATION: VaporFit dial adjustment system offers 270-degree fit adjustment with the turn of a dial, Designed for ultimate integration with Smith performance eyewear and goggles for maximum comfort, venting and storage convenience, AirEvac ventilation system integrates with Smith goggles and eyewear for fog-free lenses FEATURES: 20 fixed vents for consistent airflow, Three-position adjustable visor, Ionic+ antimicrobial lining offers sweat-activated odor control, Lightweight, low-bulk single-layer webbing, Front and rear eyewear storage channels WEIGHT: (Size M, MIPS) 14oz / 380g CERTIFICATION: CPSC,CE EN 1078

Give credit where credit's due. Thank your mom, your legs, and your gear for giving you the opportunity to land that rocky gap. Made for going big, going fast, or both, the Smith Mainline is our pinnacle, downhill certified enduro bike helmet. Safety innovations like Koroyd and MIPS provide energy-absorbing impact protection so you have the confidence to get aggressive on the trail. It doesn't matter if you're slaying the EWS in Whistler or suffering through the last stage of your local enduro race, you need a breathable, lightweight helmet that pairs well with goggles and fits like a glove. The Mainline integrates with your bike goggles for efficient venting and fog-free vision. Multiple pad sets including liners and neck-rolls let you customize the fit. PROTECTION: Complete Koroyd coverage for lightweight, energy-absorbing and ventilated impact protection, MIPS Brain Protection System reduces rotational forces caused by angled impacts to the head FIT / INTEGRATION: Three washable cheek pad kits, two crown liners and two neck rolls let you fine tune the fit, D-ring chin strap fastener for a snug fit, Designed for ultimate integration with Smith performance goggles for maximum comfort, venting and storage convenience, AirEvac ventilation system integrates with Smith goggles for fog-free lenses FEATURES: 21 fixed vents for consistent airflow, Adjustable visor, Hybrid X-STATIC / Ionic+ anti-bacterial performance lining for odor resistance WEIGHT: (Size M, MIPS) 27oz / 770g CERTIFICATION: CPSC, CE EN 1078, ASTM F1952

The Network helmet is the perfect blend of style, versatility and performance. Cyclists will welcome the clean, modern design combined with the superior protection and ventilation properties that only Koroyd can provide. Koroyd is featured in strategic, zonal impact areas offering increased protection where it matters most. As eyewear integration is mandatory for this rider, the AirEvac system works to pull air off of your eyewear to prevent fogging. Pass-through channels allow eyewear to be easily stored on the front of the helmet. - Lightweight Aerocore in-mold construction - Ventilated protection featuring patented Koroyd material - MIPS system available in all colors - VaporFit adjustable fit system - 20 optimized vents - XT2 anti-bacterial performance lining - Ultra-light single layer webbing - AirEvac ventilation - Camera and light mount compatible - Ultimate sunglass integration - Adjustable/removable visor - Weight (Size M) 10.58oz / 300 grams - Certification: CPSC, CE EN 1078 Sizing - Small: 51 – 55cm - Medium: 55 – 59cm – Large: 59 – 62cm

Fast-paced lunch ride or weekend 60-miler, the Smith Persist road helmet is down for whatever you've got in mind. Designed to feel like it's tailor-made for your head, it has an easy-to-adjust VaporFit system that lets you dial in the fit, even while riding. When you're sweating it out on the climb, 21 fixed vents and our AirEvac ventilation system keep the air flowing, your head cool and your glasses from fogging. MIPS Brain Protection System helps reduce angled impact forces in the event of a crash, for the confidence to tuck every descent. PROTECTION: Lightweight in-mold construction, MIPS Brain Protection System reduces rotational forces caused by angled impacts to the head. FIT / INTEGRATION: VaporFit dial adjustment system offers 270-degree fit adjustment with the turn of a dial, Designed for ultimate integration with Smith performance eyewear for maximum comfort, venting and storage convenience, AirEvac ventilation system integrates with Smith goggles and eyewear for fog-free lenses. FEATURES: 21 fixed vents for consistent airflow, Performance comfort lining, Lightweight, low-bulk single layer webbing WEIGHT: (Size M, MIPS) 11oz / 300g CERTIFICATION: CPSC, CE EN 1078

You earn your ride through the climb, but you're really in it for the downhill. Our Smith Session helmet is made for the all-mountain rider that wants speed and style in one protective package. The ultralight feel and innovative protection of Koroyd in strategic, zonal impact areas let you bomb and blaze with confidence. Generous air ports on the top work with internal air channels to provide ventilation that keeps you cool on the uphill and helps maintain your focus in descent mode. Plus, it accommodates easy goggle or eyewear storage so you can sit back and enjoy the view from the top without accidentally smashing your gear. PROTECTION: Complete Koroyd coverage for lightweight, energy-absorbing and ventilated impact protection, MIPS Brain Protection System reduces rotational forces caused by angled impacts to the head FIT / INTEGRATION: VaporFit dial adjustment system offers 270-degree fit adjustment with the turn of a dial, Designed for ultimate integration with Smith performance eyewear and goggles for maximum comfort, venting and storage convenience, AirEvac ventilation system integrates with Smith goggles and eyewear for fog-free lenses FEATURES: 15 fixed vents for consistent airflow, Three-position adjustable visor, Ionic+ antimicrobial lining offers sweat-activated odor control, Lightweight, low-bulk single layer webbing WEIGHT: (Size M, MIPS) 13oz / 370g CERTIFICATION: CPSC, CE EN 1078

The Trace is the pinnacle helmet in Smith's performance road collection. The Trace features Koroyd, which fully surrounds the helmet providing exceptional protection and works with the internal air channels and open intake and exhaust ports produce maximum ventilation. Storage and ventilation of eyewear is crucial on those long rides, the Trace’s AirEvac system relieves hot air that builds up on your eyewear to prevent fogging. Eyewear storage is made easy by channels on the side of the helmet that hold your eyewear in place for those grueling climbs. - Lightweight Aerocore in-mold construction - Complete ventilated protection featuring Koroyd - Integrated skeletal structure - VaporFit adjustable fit system - 18 optimized vents - XT2 anti-bacterial performance lining - Ultra-light single layer webbing - AirEvac ventilation - Ultimate eyewear integration - Light mount compatible - MIPS system in all colors - Weight: (Size M, MIPS) 10oz / 280 grams - Certification: CPSC Sizing - Small: 51 – 55cm - Medium: 55 – 59cm – Large: 59 – 62cm

When your young rider is dedicated to the dirt, you need gear that keeps pace with their skill set. The Smith Wilder Jr. mountain bike helmet combines the enhanced angle impact protection of MIPS with a lightweight, ventilated design just like our adult helmets. 21 fixed vents keep the air flowing as kids bomb down their favorite trails. Our VaporFit dial system adjusts around the head with the turn of a dial to get the right fit every time. There's a built-in visor to cut glare and integrated sunglasses storage, so kids can stow their glasses just like mom or dad. PROTECTION: Lightweight in-mold construction, MIPS Brain Protection System reduces rotational forces caused by angled impacts to the head. FIT / INTEGRATION: VaporFit dial adjustment system offers 270-degree fit adjustment with the turn of a dial, Designed for ultimate integration with Smith performance eyewear and goggles for maximum comfort, venting and storage convenience, AirEvac ventilation system integrates with Smith goggles and eyewear for fog-free lenses FEATURES: 20 fixed vents for consistent airflow, Integrated visor, Performance comfort lining, Lightweight, low-bulk single-layer webbing WEIGHT: (Size XS, MIPS): 10 oz / 270 g CERTIFICATION: CPSC, CE EN 1078

Safety & Style. Protection With Panache. - Child/Youth BMX - CPSC Certified - Easily Adjustable Straps - Easy-To-Adjust Fit System - Weight: 470 grams - Vent count: 12 - Sizes: Child 50-54cm, Youth 54-58cm

The Caden MIPS II offers a sophisticated style with advanced head protection technology, making it a perfect match for your on-the-go lifestyle. A sleek In-Mold shell helps keep Caden lightweight, and the Roc Loc City MIPS fit system makes fit and feel adjustments almost effortless. Inside the helmet, MIPS technology can help to reduce rotational forces to provide more protection in certain impacts. Thoughtful details include reflective accents, a lock port for securing the helmet with your bike or a bag when you're on the move, and a TPU cycling cap-style visor that accents your style without compromising ventilation.

The Caden MIPS II offers a sophisticated style with advanced head protection technology, making it a perfect match for your on-the-go lifestyle. A sleek In-Mold shell helps keep Caden lightweight, and the Roc Loc City MIPS fit system makes fit and feel adjustments almost effortless. Inside the helmet, MIPS technology can help to reduce rotational forces to provide more protection in certain impacts. Thoughtful details include reflective accents, a lock port for securing the helmet with your bike or a bag when you're on the move, and a TPU cycling cap-style visor that accents your style without compromising ventilation.

The Disciple MIPS is built around the ASTM-1952 DH Standard to meet the demands of freeride, downhill and enduro. It has a fiberglass shell, plush interior padding, and vented brow ports for comfort. Vinyl nitrile padding along the jaw line contributes to impact management in this critical area, and the integrated, breakaway P.O.V. camera mount plus built-in speaker pockets let you dial in your sound and images. It is equipped with the MIPS system to redirect impact energy, which can provide more protection in certain impacts. Altogether it’s an impressive option for a new era of riding.

A lightweight in-mold design with built-in front and rear LED lights and remote handlebar-activated turn signals is the perfect accessory for the daily commute through the urban jungle. STANDOUT STYLE WITH BOLD VISIBILITY Choose to ride, choose to be seen. The Ethos™ Mips® is a revolution in transportation, with a compact and stylish form featuring the added protection of Mips® Brain Protection System highlighted by integrated LED front white lights, rear red lights, and amber turn signals, all controlled via an intuitive handlebar remote. The entire system is USB-C rechargeable with an estimated run time of 10 hours in low-blink mode and 5 hours in the high-blink mode, which delivers 45 lumens front and 30 lumens rear. Helmet and remote can be fully charged in just 2 hours and 1 hour, respectively. The Ethos Mips features a TPU soft rubber waterproof brim. (The Ethos Mips also is available with a clear, molded eye shield as the Ethos Mips Shield). Despite the added technology, in-mold construction keeps the weight manageable, full hardbody coverage adds durability, and a Roc Loc® City Mips fit system plus quick-dry padding ensure comfort. Whether you're a dedicated bike commuter, running the kids to school on your e-cargo bike, or simply looking for added visibility as you ride around town, the Ethos Mips is a look into the future. Highlights: - Built-in front (white) and rear (red) LEDs - Handlebar-activated turn signals (amber/yellow) - Micro-USB C rechargeable - Deep coverage - Quick-dry padding

Go big in the Fixture MIPS XL Helmet, made specifically for riders in need of an extra-large size who want breezy ventilation, the ease of the Roc Loc Sport fit system, and confident style. Inspired by the confident mountain style and breezy ventilation of our Fixture helmet, the Fixture MIPS XL is built around many of our best features, like In-Mold construction coupled with the ease and comfort of our acclaimed Roc Loc Sport fit system. Meanwhile, a seamlessly integrated Multi-Directional Impact Protection System, which can redirect energy and provide more protection in certain impacts, ensures that you have the latest in head protection technology, too. This makes the Fixture MIPS XL one of the best performance value mountain bike helmets available.

Giro design, and high-performance innovation for core road cyclists, gravel enthusiasts, and adventure riders. Advanced Performance for the Adventurous The heart of the Helios's extraordinary design and performance is Spherical Technology, which utilizes a ball-and-socket design powered by MIPS, the market-leading brain protection system that can help to reduce rotational forces. Spherical Technology allows the helmet's outer liner to rotate around the inner liner during a crash, and also allows Progressive Layering of the inner and outer liners to provide more comprehensive protection and performance. In addition to advanced head protection, the Helios's 15 Wind Tunnel vents provide exceptional cooling power that's enhanced by our patented Roc Loc 5 Air fit system and plush, antimicrobial XT2 padding for exceptional sweat absorption. It's the ideal match for your road and gravel adventures. Specs: - Impact Management: Spherical Technology, Powered By Mips - Construction: Independent, in-mold liners with spherical ball-and-socket design, Polycarbonate Shell, Hardbody Lower Shell - Ventilation:15 wind tunnel vents with internal channeling - Fit System: Roc Loc 5 Air - Weight: 270 (Size Medium CPSC, CE) - Certification: Complies with the US CPSC Safety Standard for bicycle helmet for persons age 5 and older E.U.: CE EN1078 - Highlights: Nanobead EPS Foam, Coolfit Antimicrobial Padding, Slimline Webbing, Four-piece shell w/lower hardbody

An updated classic. Already one of our most popular trail helmets of all time, the Montaro MIPS II now benefits from the Roc Loc 5 Air MIPS System. This sleek design integrates 2-way fit and stability adjustment with the MIPS brain protection system for an added measure of protection from rotational forces without excess plastic against your skin. The helmet's compact shape offers deep coverage and an in-mold hardbody shell for enhanced durability without excess weight. In addition to advanced brain protection, the Montaro II is outfitted with IONIC+ padding with permanent antimicrobial performance plus 16 vents with internal channeling to keep you cool and comfortable. We also built in all of the features you need for great fit with goggles, including strap grippers on the back of the helmet and our patented P.O.V. Plus visor that allows you to lift the visor and place your goggles on the front of the helmet when your run is done. A clever breakaway interface for your favorite light or camera is included, too.

The Quarter is one of the lowest-profile helmets we've ever made, and it's also the lightest we've made with an ABS shell. The essentials are here—an EPS liner for impact management, a tough outer shell, riveted webbing anchors, and plush, sweat absorbent pads that are easy to swap for dialing in the fit. Another standout feature—the polyurethane coating—helps to protect the EPS liner from daily wear and tear. Plus it's available in a bunch of great colors and three Super Fit sizes.

The Radix MIPS helmet combines rugged style and durability to meet the demands of core trail riders, with the coverage, lightweight, and ventilation riders need to ride comfortably and confidently, all day. The Radix MIPS helmet is for the rugged adventurer who appreciates a perfect fit, the sun staying out of their eyes, and plenty of ventilation. The highly adjustable Roc Loc 5.5 MIPS system allows you to customize fit and feel for enhanced stability and long-range comfort while providing an added measure of protection from rotational forces in the event of an angled impact. The P.O.V. Visor offers 15 degrees of adjustment, and the tough polycarbonate outer shell is fused permanently to the EPS foam liner using our in-mold construction process, to enhance durability and ventilation without excess bulk. - Construction: Full-wrap in-mold polycarbonate shell with EPS liner - Sport: Cycling - Number of vents: 25 - Ventilation type: Wind tunnel vents with internal channeling - Fit system: Roc Loc 5.5 MIPS

The Roc Loc 5 Led Light is one of the easiest and most powerful ways to increase visibility and safety on the road.

The Scamp is packed with amazing features, including some of the same elements found in Giro's best adult helmets, all in a smaller package designed to fit your child. The all new Roc Loc Jr. fit system with pinch-guard buckle provides an easy way to fit your kid’s helmet quickly and securely. With a wide size range, your child can use this helmet as they grow from balance bikes to training wheels. The design is inspired by the adults’ Montaro/ Montara, and since the Scamp is available in a range of kid-friendly colors and designs, your child will be excited to wear it every time they ride.

The Scamp MIPS is packed with amazing features, including some of the same elements found in Giro's best adult helmets, all in a smaller package designed to fit your child. The Roc Loc Jr. fit system with pinch-guard buckle provides an easy way to fit your kid’s helmet quickly and securely. The wide size range ensures children can use this helmet as they grow from balance bikes to training wheels. The design is inspired by the adult Montaro MIPS / Montara MIPS, and since the Scamp MIPS is available in a range of kid-friendly colors and designs, children will be excited to wear it every time they ride. Scamp MIPS models are available with the Multi-Directional Impact Protection System. MIPS can redirect energy and provide more protection in certain impacts.

The Switchblade MIPS is an ASTM downhill certified full-face helmet with a removable chinbar so you can easily switch to rowdy when it's time to descend. Everything about the Switchblade is optimized for the descent. That's why in addition to mandatory standards, it's also certified to ASTM-1952 DH with and without the chinbar. The chinbar is easy to remove - just push the buttons under the chinbar, rotate up, and take off—and it's just as easy to reinstall. Another boast-worthy feature on the Switchblade MIPS is the Roc Loc Air DH fit system, which has a bumper around the dial to prevent accidental adjustments if your helmet contacts your backpack or neck brace—all while keeping you cool. When the chinbar comes off, Wind Tunnel cheek pad ventilation adds even more cooling power as you start to climb. Plus, the full-cut style gives this helmet an aggressive look and provides ASTM certified coverage even when the chinbar is removed. When your ride is all about descending, your helmet should be too, and the Switchblade MIPS is the only removable chinbar helmet that is truly built for the down.

The Syntax MIPS combines a touch of European flair with slightly deeper coverage and high-performance features—all tucked into a very slim design. The outer shell is molded from a tough polycarbonate that’s fused permanently to the EPS foam liner using Giro's In-Mold construction process to enhance durability and ventilation without excess bulk. The fit is luxurious and secure, thanks to the highly adjustable Roc Loc 5 Air MIPS system that allows you to customize fit/feel for great stability and long-range comfort. Another benefit is integrated MIPS which can provide an added measure of protection from rotational forces in the event of an angled impact. MIPS - Integrated MIPS (multi-directional impact protection system)—allows you to customize fit/feel for great stability and long-range comfort while providing an added measure of protection from rotational forces in the event of an angled impact CONSTRUCTION - In-mold construction - Four-piece polycarbonate interlocking hardbody shell - Full hardbody wrap SHELL TYPE - Polycarbonate shell SPORT - Cycling NUMBER OF VENTS - 25 INTERIOR/LINER TYPE - Coolfit anti-microbial padding VENTILATION TYPE - Wind tunnel vents with internal channeling GENDER - Unisex FIT SYSTEM - Roc Loc 5 Air IMPS MIPS IMPACT LINER TYPE - EPS CERTIFICATION - US CPSC bicycle for ages 5+ - EU: CE EN 1078

When every curb is a jump and every patch of dirt screams for a skid, the Tremor MIPS is there to keep smiles wide. Featuring some of the best technologies from Giro's adult line, like In-Mold construction for reduced weight and enhanced durability, and their acclaimed Roc Loc Sport system for fast, secure fit adjustments, the Tremor is ready for any ride. Tremor MIPS models also include an integrated Multi-Directional Impact Protection System (MIPS), which can redirect energy and provide more protection in certain impacts, providing the latest in head protection technology for junior riders.

The Tremor MIPS helmet's cool style is more than meets the eye. It features the latest in head protection technology, an easy-to-adjust fit system, and 18 vents for breathability, making it a big hit with parents and little shredders alike. Featuring some of the best technologies from our adult line, like In-Mold construction for reduced weight and enhanced durability, and our acclaimed Roc Loc Sport system for fast, secure fit adjustments, ensure that the Tremor is ready for any ride. The Tremor MIPS also includes an integrated Multi-Directional Impact Protection System (MIPS), which can redirect energy and provide more protection in certain impacts, providing the latest in head protection technology for junior riders. MIPS: - Integrated MIPS (Multi-Directional Impact Protection System)—allows you to customize fit/feel for great stability and long-range comfort while providing an added measure of protection from rotational forces in the event of an angled impact Construction: - In-Mold construction - Full Hardbody shell Shell Type: - Polycarbonate shell - Number of vents: 18 Sport: - Cycling Visor: - Removable visor Interior/Liner Type: - Quick-dry padding Fit system: - Roc Loc Sport MIPS Impact Liner Type: - EPS

The Radix MIPS W helmet combines rugged style and durability to meet the demands of core trail riders, with the coverage, light weight, and ventilation riders need to ride comfortably and confidently all day. The Women's Radix MIPS W helmet is for the rugged adventurer who appreciates a perfect fit, the sun staying out of their eyes, and plenty of ventilation. The highly adjustable Roc Loc 5.5 MIPS system allows you to customize fit and feel for enhanced stability and long-range comfort while providing an added measure of protection from rotational forces in the event of an angled impact. The P.O.V. visor offers 15 degrees of adjustment, and the tough polycarbonate outer shell is fused permanently to the EPS foam liner using our In-Mold construction process, to enhance durability and ventilation without excess bulk. Specs: - Integrated MIPS - Construction: In-mold polycarbonate shell with EPS liner - Ventilation: Wind tunnel vents with internal channeling - Fit System: Roc Loc 5.5 MIPS - Weight: 316g (Size Medium CPSC); 300g (Size Medium CE) - Certification: Complies with the US CPSC Safety Standard for bicycle helmet for persons age 5 and older, E.U.: CE EN1078 - Highlights: P.O.V. Adjustable visor, Quick dry padding, Slimline webbing

If relentless performance and style is what you're after, then you'll get it with the Seyen MIPS. Its slim design, luxurious fit, and highly-adjustable fit system will let you focus on what you do best, the ride. The Seyen MIPS combines a touch of European flair with slightly deeper coverage and high-performance features—all tucked into a very slim design. The outer shell is molded from a tough polycarbonate that's fused permanently to the EPS foam liner using our In-Mold construction process to enhance durability and ventilation without excess bulk. The fit is luxurious and secure, thanks to our highly-adjustable Roc Loc 5 Air MIPS system that allows you to customize fit/feel for great stability and long-range comfort. Another benefit is integrated MIPS which can provide an added measure of protection from rotational forces in the event of an angled impact.

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