Best Adjustable Bike Helmets in 2026

STYLE & DESIGN – Designed after the tried and true classic bicycle helmet low profile with great coverage in a variety of colors

FIT SYSTEM - Our True Fit system for easy one-step adjustment every time you ride it’s that simple

PINCH GUARD – The patented Pinch Guard buckle ensures pinch-free buckling

DURABLE - Built for both comfort and impact resistance with REINFORCED ABS SHELL & THICKENED SHOCK-ABSORBING EPS CORE.

EXTRA REMOVABLE LINING - Skateboard helmet with two removable liner for different head sizes and easy to wash the sweat away.

A HELMET for MULTI-SPORT - Smooth Ventilation System helps to protect and enjoy SKATING, CYCLING, BMX, MTB and etc. Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older

Its Rugged ABS Shell and shock-absorbing EPS foam effectively reduce the impact of any potential falls, providing essential protection to keep wearer safe from bumps and bruises. Complies with U.S. Consumer Product Safety Commission Safety Standard for Bicycle Helmets for Persons Age 5 and Older.

3 sizes, Small (51-54 cm/ 20.0-21.3 in.) for baby toddler and children. Medium (55-58 cm/ 21.6-22.9 in.) for youth teenager and adults. Large (59-61 cm/ 23.2-24.0 in.) for adults. Various colors for men, women, boys, girls and babies. Please choose the helmet size according to the head circumference.

This classic bike & skateboard helmet is perfect for a variety of outdoor activities, including biking, skateboarding, roller skating, scooter rollerblade, longboard, hoverboard.

DOT Approved; Helmet Size: L (53-54 CM,20.9/21.3 Inch); Glove Size: L (Palm Width 3.1 Inch); Package Includes: One Youth MX Helmet + One Pair of MX Goggles + One Pair of MX Gloves;

Light weight durable aerodynamic thermoplastic alloy shell

Beautiful glossy UV protective finish

IMPACT RESISTANCE:These bike helmets are specially designed for Kid / Children safety protection. PC shell resists impact and high quality EPS foam provides shock-absorbing.Complies with U.S. Consumer Product Safety Commission Safety Standard for Bicycle Helmets for Persons Age 5 and Older

COOL and COMFORTABLE:14 vents let air go through the skating helmet,Super lightweight 200g(7 OZ) ,more comfortable, cooler rides.and the helmet liner use Velcro adhesive ,can be removable and washable.

2 SIZE AVAILABLE :Adjustable regulator and strap which make it flexible to fit the size of toddler / youth. Size S:50-54 cm（19.7''-21.2''),suitable for 3-8 years old;Size M:54-58 cm（21.2''-22.8''),suitable for 8-14 years old

Helmet Sizes-M: for head Size: about 20.5-22.4 inch. Skateboard / Skate Protection Gear Size: M: Fit for weight 49.6-121.3lbs (fit for teenagers between 11-16 yrs old) Conforms to EN1078, CE and CPSC Standards.

Multiple Using Range - Skate / Protection Set bring you all-round and perfect protection while doing skateboard, roller blading, bicycle and many other outdoor sports.

Upgraded Adjustable Strap - Multiple adjustable helmet strap and elastic pads straps with Velcro closures for secure fit for various knee boys and girls.

IMPACT RESISTANCE: The toddler bike helmets are specially designed for multi-sports head protection. The material use is tough and durable PVC, EPS foam which would help absorb the impact and protect your kids head during impact

HEAD SIZE: Small size is 18.89''-21.26'' (48-54cm), it’s suitable for 3-8 years old, Medium size is 21.65-22.44" (55-57cm), it’s suitable for 9-12 years old. Please choose the helmet according to the head circumference classification

ADJUSTABLE FIT: This kids bike helmet has an adjustable spin dial on the back of the helmet to ensure you achieve a perfect and safe fit. After a day of riding you can easily remove the inner lining and wash away any sweat

Size S : Suggest for kids 6 - 14 years old

Size M : Suggest for youth age 14+ years old / slim ladies

Size L : Suggest for adult men and women

FUSION IN-MOLD POLYCARBONATE SHELL - A process pioneered by bell bonds the helmet's outer shell to the eps foam liner to create a sturdier helmet

ERGO FIT - What was once ErgoDial now has an improved dial feel and function (no longer requires a push to turn) and is more sleek and less bulky

NO-TWIST TRI-GLIDES - Quick-adjust fasteners that help keep straps flat and properly positioned

COMMUTING AND ROAD: All-around protection for everyday use; Multipurpose helmet designed for road cycling, from weekend rides to the daily commute

PROTECTIVE TECHNOLOGY: Optimized-density EPS liner for crash protection; Patent pending silicone pad technology system, SPIN (Shearing Pad Inside), uses innovative materials and design to complement POC's whole helmet approach

STREAMLINED DESIGN: Slim profile for a clean aesthetic; Lightweight and breathable construction for comfort and functionality on longer rides

Structurally optimized helmet with precise ventilation ports and internal channels to control the air intake and release at both high and low speeds

Extreme cooling and ventilation due to ports and innovative internal airflow design.

Unique design optimized with CFD testing for aerodynamic performance and minimal air turbulence.

Lightweight but extremely durable ABS shell that keeps kids safe，meets or exceeds FMVSS-218 and DOT safety standards.

High-quality EPS liner material,breathable liner,removable and washable padding.

Advanced ventilation system design with multi intake and exhaust vents, make fresh air keep entering the helmet, You can have a good riding experience even in hot summer.

VERSATILITY: Our dual-sport helmet is the perfect fit, whether you are hitting the road or trail on your motorcycle, dirt bike, ATV or snowmobile. No need for extra helmets to take up space in your garage; get the most out of your gear with a dual-sport helmet.

YEAR-ROUND RIDING: If you ride in all 4 seasons, then you need this dual-sport helmet. Pair it with the cold-weather kit (sold separately WPS PN: 72-3348) to transition from the desert sun to a winter snowstorm. Your season never has to stop when you switch to the GM-11.

DETAILS MAKE THE DIFFERENCE: We've included a large eye port for compatibility with goggles as well as the ability to close the shield over the goggles, the option to easily switch between visor or visorless, a shield that can be raised completely out of sight when up, integrated speaker pockets and many other bonus features that make every ride with the GM-11 unforgettable.

PREMIUM PROTECTION FOR BOYS AND GIRLS: The new Flybar youth helmets are perfect for skateboarding, biking, BMX, scooter, rollerblading, pogoing, and other sport activities

ADJUSTABLE SIZES: S (48-52cm/18.9-20.5in); M (52-56cm/20.5-22in); L (56-58cm/22-22.8in) Flybar Kids Helmets features an adjustable fit dial on the back of the helmet to ensure a perfect and safe fit. 13 wide vents on the medium and large helmets and 10 on the small helmets provide even air flow to keep cool during active sports sessions. For a perfect fit, measure the circumference of your child's head starting in the middle of their forehead to ensure you choose the correct size

STRONG OUTSIDE, COMFY INSIDE: Its shock-absorbing outer shell resists impact, safely protects your child's head, and reduces risk of injury from impact while providing a comfortable and snug fit

A helmet that speaks for you when you can’t; Integrated NFC Medical ID chip stores your medical profile and emergency contacts in the helmet for first responders to access instantly

Integrated RECCO reflector uses radar so you can be quickly located and helped if you get injured; Used and trusted by rescue services around the world

Features POC’s patent-pending silicone pad technology system, SPIN (Shearing Pad Inside), that uses innovative materials and design to complement POC's whole-helmet approach

Lightweight ABS Shell

17 Vents provide cool air intake and heat exhaust

Large eye port for greater field or vision and improved goggle fit

IMPACT RESISTANCE – This lovely bike helmets are specially designed for Kids / Child Multi-sports Head protection. Tough and durable PVC PC, EPS foam which would help absorb the impact and protect the head during impact to reduce your child risk of injury while biking on or off road.

ADJUSTS from TODDLER to CHILDREN SIZE – Easily adjusts Vertically and Horizontally for a tighter & snugger fit due to its ADJUSTMENT SYSTEM with a FIT DAIL. Helmet size 19.5"-20.6" makes it flexible to fit perfectly for boys and girls age 3-7. It doesn't fit kids of 8 years and above.

COOL AND COMFORTABLE - Lightweight, 10 vent holes for cooling air flow even in the middle of summer! The Soft STRAP IS fully adjustable and the quick-release clip keeps the helmet securely in place without risk of face scratches or abrasions.There are Velcro absorbent pads inside the skateboarding helmet, which is removable and washable.

【Safety Kids Bike Helmet】 Our child’s helmet made of Durable hard PC shell and high-density EPS foam,removable soft inner padding, multiple protection & shock absorption.Take full care of your child's head safety.What’s more, this helmets provide professional protection for children through CE safety certification,Please be assured that it will protect your child's head like Superman

【Lightweight & Breathable】This bike helmet design with 12 large vents, use breathable and comfortable foam material.Effectively reduce air resistance and reduce sweating, Are you still worried that the child is too stuffy and uncomfortable to wear a helmet? This full face helmet is so breathable and comfortable that your child will love it; Moreover, the helmet’s light only 13.4 oz (0.84 lb) protects cervical spine and will not cause any burden to the head

【2 IN 1 Detachable Helmet】ROCK BROS Kids Cycling Helmet can free conversion between half helmet and full face helmet at any time, The Bicycle helmet with removable chin guard, the chin guard is easy to remove with a button. So when it is just an ordinary leisure ride, you can easily remove the chin guard

DOT Approved; Helmet Size: L (53-54 CM,20.9/21.3 Inch); Glove Size: L (Palm Width 3.1 Inch); Package Includes: One Youth MX Helmet + One Pair of MX Goggles + One Pair of MX Gloves;

Light weight durable aerodynamic thermoplastic alloy shell

Beautiful glossy UV protective finish

Full Schwinn 360° Comfort featuring adjustable dial fit and full-range padding for the perfect custom fit

Mountain-style microshell helmet provides maximum versatility and durability for even the toughest trail rides

ABS outer shell coverage adds durability and superior protection in the rear

DOT Approved - NENKI Motorcycle Street Bike Helmet Meets/Exceeds FMVSS-218 and DOT Approved Safety Standards

Collision Resistant Material - NENKI motorcycle helmet is made of fiberglass fiber, which has higher impact resistance and more durable than ordinary ABS helmets. The inner side is made of EPS impact foam and cushion pad, which has good shockproof performance, can reduce pressure on rider’s head when impact happens, ensure the safety of each rider

Dual Visor - NENKI motocross helmet has dual visors design, with outer clear visor and inner sun visor，which can provide comprehensive protection to riders's eyes both in sunny and cloudy day

Shell is made from LS2’s proprietary ultra-light extra strong High Performance Fiberglass Composite

DOT approved. Meets the FMVSS 218 Standard

Twin Shield System drop down sunshield protects your eyes and is easy to operate with a gloved hand

The Ventral Air MIPS is designed for long days in the saddle and comfort even in the warmest temperatures with an aerodynamic design and safety features you can count on

MIPS Integra technology, a fully wrapped unibody PC shell, and a lightweight EPS liner provide protection in the event of a crash without adding weight

Internal airflow channels and ventilation ports deliver cool air to the whole head at all speeds; In long rides and hot weather the Ventral Air MIPS is built to keep you cool

SAFETY FIRST: Our best performance mountain bike helmet complies with U.S. CPSC and E.U.CE Safety Standard for Bicycle Helmets, offer the versatility you need to ride everything from fire-road adventures to swooping single track trails, Maximum protection for your safety

IN-MOLD CONSTRUCTION: Full Coverage Tough polycarbonate outer shell fused helmet’s impact-absorbing EPS foam liner for durability without excess weight, Riding with ultimate free and comfortable

READ TO GO: sleek design and classical color, styling with 18 wind tunnel vents with internal channeling keep you feeling good mile after mile

【Safe and Sturdy Bike Helmet】Gudook Bike helmet with light, Integrated molding, made of thickened High-density EPS buffer layer inner shell and PC outer shell, shock absorption, high impact resistance, provides higher safety performance and meets the US CPSC ASTM bicycle helmet safety standard.

【Front And Rear Light Designed】The commuter bicycle helmet with USB-C charging LED front and rear lights, a headlight that can light up ahead, and a taillight that lets others recognize your direction, which has 4 light modes and can Switch freely easily, provide max visibility and safety while night cycling.

【Bicycle Helmet for scientifically Designed 】 The bike helmet for women with light, Safety comfortable lightweight, and durable. with a 20-hole ventilation system to enhance the air circulation inside the helmet, distributed mesh thickened Insect net lining, and head fully cushioned, more comfortable to wear, and can be easily removable for cleaning.

▶SOLID QUALITY◀ Keep your child safe while they ride their bike with the OnBros Kids Bike Helmet, featuring high-density EPS foam padding and a thick soft heat-sealed lining that absorbs impact and protects their head from injury.

▶STYLISH DESIGN◀ The elongated tail shape of the helmet provides extra protection for the back of your child's head, while the chin pad ensures a comfortable and secure fit that won't slip or slide.

▶ADJUSTABLE◀ With 16 ventilation holes, the OnBros helmet keeps your child cool and comfortable while they ride, and the adjustable head and tail size means it will grow with them, providing long-lasting value and protection.

This racing helmet offers protection for mountain bikers and enduro cyclists including an extended shell design, aramid bridge for enhanced structural integrity

MIPS Integra technology provides enhanced protection against rotational impact; A lightweight EPS liner and PC Shell offer optimal protection so you can ride confidently

TwICEme NFC Medical ID chip provides information to rescuers in the event of a crash for more targeted rescue support; RECCO Reflectors make finding you easier when you need help most

Thermo-Poly Alloy Shell

Single Action Removable Chin Bar

Adjustable 3-stage visor

Progressive core, dual density EPS liner

In-mold construction

Extra tough outer shell to prevent denting

NEW RACE/OFF ROAD: performance full face helmet - ultimate in coverage, comfort

VENTILATED: 16 cooling vent ports, chin bar featuring EPP (Expanded Polypropylene) Collarbone ventilation system

REMOVABLE/WASHABLE: liners and cheek pads interchangeable for a customized fit. Six standard sizes