Best Adjustable Bike Helmets in 2026

MARKET-LEADING PROTECTION: Engineered in Giro’s category-leading helmet test lab.

INTEGRATED MIPS: Utilizes the Multi-Directional Impact Protection System to redirect energy in a crash.

VENTILATION: 18 Wind Tunnel vents with internal channeling.

Red painted 3D mohawk!

Recommended for kids age 5+, but will fit most heads measuring 50-54cm

ALWAYS take a head measurement. Head sizes and shapes can vary, even within an age range. Using a helmet that doesn't fit can be dangerous

DESIGN - Mohawk lights up with LED lights. Auto shut off to prolong battery life.

CONSTRUCTION - Adjustable straps for a custom snug fit, and aerodynamic cooling vents for great airflow. Durable outer PVC shell, and impact dampening expanded polystyrene inner foam construction.

STYLE - Perfect light weight helmet for cruising around on a bike, scooter, skateboard or rollerblades!

INTEGRATED MIPS: MIPS Protection System is integrated with the Roc Loc Sport Fit System for an added measure of protection in certain impacts plus market-leading fit and comfort.

UNIVERSAL FIT SIZING: Get the right fit, straight out of the box.

VENTILATION: 18 vents.

Graphics and design are inspired by our Demon Team

Fully adjustable visor with aluminum side visor screws

Tough injection molded thermal alloy resin polycarbonate shell

Features: Beautiful Glossy UV Protective Finished; Light Weight Extremely Durable Composite ABS Shell; Multi Ventilation Openings, Good Ventilation; Adjustable Sun Visor; Comfortable/Removable/Washable/Breathable Liner; Strong and Sturdy Double D-ring Lock Keep the Helmet Stay on Firmer and Securer.

DOT Certified: Meets or Exceeds FMVSS-218 and DOT Safety Standards, Providing Better Protection for Your Boys/Girls When Riding Off Road, Motocross, ATV and Participating Outdoor Sports.

A Variety of Different Fashion Pattern Designs: They are great for Youth Kids Dirt Bike, Off-road, Street Riding, ATV, Motocross etc, Absolutely a Sweet Birthday/Christmas/New Year Gifts or Present for Your Daughter, Son, Grandson, Granddaughter, Nephew and Niece or Daily Purchases.

Various colors and sizes for users of different ages, genders, head circumferences,multi-sports activities.Available for Person Age 5 and Older,and suggestion: S Size for toddler / kid

High hardness ABS outer shell resists impact and high density EPS inner shell provides shock-absorbing,very safety and durable

Removable foam padding adopt breathable liner heat pressing cotton,special aerodynamic design ,12 air cooling vents to keep the head cool

This Schwinn Thrasher lightweight helmet is designed for children. Suggested age range: 5 to 8 years old. Suggested head circumference: 50 - 54 cm

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

Two microshell layers and full-coverage EPS foam construction provides lightweight durability

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.

✅【SAFE AND RELIABLE】 Kids/Youth ATV Helmets make sure kids are safe, DOT safety standards. It has a great amount of padding and protection inside,which provides excellent layers of protection.

✅【SNUG AND COMFORTABLE】 Kids/Youth ATV Helmets are very comfortable and not too heavy for the kids. It is Great gifts or present for your daughter, son, grandson, granddaughter, child, kids and Grandchildren on Christmas Day, New Year, Birthday.

✅【MULTIPLE AIR VENTS DESIGN】Kids/Youth ATV Helmet has multiple air vents around the helmet to maximize air circulation, make fresh air keep entering the helmet, You can have a good riding experience. The optimized vent reduces the wind noise and can ride more quietly.

NO-TWIST TRI-GLIDES & X-STATIC AND XT2 PADDING - Quick-adjust fasteners that help keep straps flat and properly positioned. Quick-drying materials, woven with real silver fibers.

MIPS-EQUIPPED & WRAPAROUND PROTECTION - MIPS stands for Multi-directional Impact Protection System, which is a leading slip-plane technology inside the helmet designed to reduce rotational forces that can result from certain impacts. Removable protective chin bar, designed for trail riding adaptability. Attaches with a simple 3-step connection process no tools required.

OVERBROW VENTILATION - Overbrow Ventilation features intake ports on the brow of the helmet to usher in cool air and push it through the air-channel matrix for full-head ventilation.

Each youth kids ATV helmet is equipped with 1 pair of sports gloves and 1 pair of UV-resistant goggles which is designed with sponge cushion for comfortable wearing. Helmet size: Small:18-19inch; Medium:19-20inch; Large:20-21inch;X-Large:21-22inch.

The youth kids dirt bike helmet is made of quality ABS shell and high-density EPS padding. Meets or exceeds FMVSS-218 and DOT Safety Standards. Providing better protection for your children when riding off road, bike, ATV and participating outdoor sports.

The youth kids motorcycle helmet is designed with multiple vents for better air flow and removable cheek pads which absorb sweat and are breathable while simultaneously in ensuring safety.

Impenetrable in safety, light in weight, and elastic in design to provide optimal impact absorption to exceed DOT standards. High-quality EPS liner material throughout the entire chin bar for enhanced impact absorption.

An aerodynamic shell containing an advanced cooling system designed with boasting 14 intake and exhaust vents in total to maximize airflow. Multi-density EPS liner yielding advantageous cooling passages throughout the helmet itself.

Cosmic peripheral field of vision utilizing a monumentally secured opening. Adjustable shatter resistant visor with high-grade steel screws tested for optimal rooster-tail smut protection, and secure mounting positioning.

MARKET-LEADING PROTECTION: Engineered in Giro’s category-leading helmet test lab

MIPS: Utilizes the Multi-Directional Impact Protection System to redirect energy in a crash

COMFORT: Easily adjust position and tension with the Roc Loc Sport MIPS Fit System

MIPS SAFETY - The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the system can reduce harmful rotational forces.

DOUBLE ADJUSTMENT - 2 different thicknesses liners(0.23&0.31inch) and the adjustment dial maximize the head fit, flexibly adapted to different kinds of cycling glasses and avoid pulling hair.

COMFORTABLE - The removeable visor and the skin-friendly adjustable chin strap offers comfortable wearing and better fit better.

Complies with the U.S. Safety Standard. It is made of sturdy PC shell and high quality EPS foam, providing more protection for the cyclist.

2 sizes are available: L, 58-61 cm (22.8-24.0 inch) for adult; M, 54-58 cm (21.3-22.8 inch) for kids age 5 and older. Please choosing the helmet size according to the head circumference.

The adjustable dial and strap can be easily adjusted to achieve a custom fit. Besides, there is a insect net attached on the front of the helmet. Suitable for road / mountain cycling and other biking activities.

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

COMPLIANCE- Complies with U.S. Consumer Product Safety Commission Safety Standard for Bicycle Helmets for Persons Age 1 and Older (Extended Head Coverage)

Made of rugged PC outer shell and High-density EPS foam. 11 vents for airflow, keep user cool and comfortable.

Adjustable rear dial and chin straps for custom fit. Size S. For head size: 50-54 cm (19. 6-21. 3 inch). Size M. For head size: 54-58 cm (21.3-22.8 inch).

3 sizes available.

ABS 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.

11 top and side vents keep user cool and comfortable.

DOT Approved - Meets or exceeds FMVSS-218 and DOT safety standards. S:55-56 CM,M:57 -58 CM,L:59-60 CM,XL:61-63 CM,XXL:63-64 CM, The helmet size runs smaller than regular helmet, please kindly choose one size up when ordering the dual sport helmet.

Dual Visors - HD enhanced wide-angle lens to increase periferal vision and improve riding safety, and the sun visor is great for protecting against the sun, which can be rotated slightly according to the direction of the sun to avoid direct sunlight. This motorcycle helmet also comes with an inner tinted visor.

Ventilation - Aerodynamic air intake system to introduce fresh air and replace the hot air inside the helmet.

CERTIFIED SAFETY & SUPERIOR PROTECTION. This helmet has undergone intensive safety tests. It fully complies with 16 C.F.R. part 1203 and CE EN 1078 safety standards. Two reinforced layers providing superior protection from the inside out.

VENTILATION. 11 air vents that will keep you cool and comfortable for hours of skateboarding. The air channels have been designed to pull fresh air over and around the head while forcing stale air out.

SIZE ADJUSTABLE. By turning the size adjustment dial, the semi-flexible sizing ring either expands or closes around your head, so you can always have a snug fit. Comes in 2 sizes, S/M for head circumference 20.5” - 22.8” (52cm -58cm). L/XL for head circumference 22.8” - 24” (58cm -61cm). Please measure your head and choose the right size.

True fit, 1-step adjustment. High-impact reflectors for visibility

4 vents for superior airflow and cooling

Pinch guard ensures pinch-free buckling

DURABLE HIGH QUALITY – The Lucky Bums Powder Series Helmet is CE certified, the in mold construction fuses the helmets outer shell to the impact absorbing EPS liner for increased durability.

LIGHTWEIGHT AND COMFORTABLE – Inner-shell micro adjustment helps insure a proper fit allowing for additional layers and minimizing pinch points. Weighing only 0.95 pounds and measuring fitted for 55-56cm.

LOTS OF FEATURES – Adjustable helmet vents allow for temperature control no matter what the weather conditions, and the goggle loop helps insure that your goggles will fit properly.

SAFETY: reinforced polycarbonate shell in-molded, EPS liner on sides and back

MAXIMUM COOL: 16 total vented ports for cool air in and drawing heat out (8 front and 8 in the back)

HIGHLY ADJUSTABLE: triple position adjustable retention system, customized head shape & eyewear fit

Meets or exceeds FMVSS-218 and DOT Safety Standards.

Visor lock keeps the outer visor firmly attached on the helmet while riding at High Speed, ensures safety.

Multiple vents for optimum ventilation, quick release and metal buckle offers solid protection.

The bicycle helmet is made of strong PC shell and high quality EPS foam, providing more safety with the integrated-moulding technology. Complies with U.S. Consumer Product Safety Commission Safety Standard for Bicycle Helmets for Persons Age 5 and Older.

Size L is 56-61 cm (22-24 inch), suitable for adult, men, women. Size M is 54-58 cm (21.2-22.8 inch), suitable for youth, teen, kids. Chin straps and rear dial adjustment are easy to adjust for custom fit.

The bicycle helmet is designed for various road & mountain bicycle activities, especially for enduro and trail. By detaching the visor, it is suitable for commuter bike in city and urban.

Dual Certified skateboarding and bike helmet with ABS shell and impact-absorbing EPS foam liner

Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older and ASTM F-1492 Skate safety standards

Ideal for biking, skateboarding, scooters, BMX, roller derby, and commuting

COMPLIANCE- Complies with U.S. Consumer Product Safety Commission Safety Standard for Bicycle Helmets for Persons Age 5 and Older. Durable polycarbonate outer shell and High-density EPS foam protect your head of the crash.

Adjustable Rear Dial & Chin Straps, adjust to fit for different sizes. 2 Sizes for choice, M:54-58cm (21.2-22.8 inch), suitable for youth, boys girls. L:58-61cm (22.8-24.0 inch), suitable for adult, men, women.

Design with 23 air vents keep you cool during long-term cycling ride. The breathable inner pads with insect net in front of cycling helmet which can be removed, wash to keep clean.

SAFETY: Our Bike Helmets Complies with U.S. CPSC,EU CE Safety Standard for Bicycle Helmets for Persons Age 5 and Older,Equip with 3 modes Helmet Led Rear light for Night or Morning Riding Safety(Lighting Models:Always On, Fast Flash, Slow Flash) (NOTE;if it does not work please contact us we will help you solve the problem)

IN-MOLD CONSTRUCTION ULTRA LIGHTWEIGHT: In-mold construction fuzes a tough polycarbonate outer shell with the helmet’s impact-absorbing foam liner.In-mold helmets can be lighter and cooler than traditional helmets, It very comfortable to wear

AMPLE VENTILATION: Comfortable pad and 24 Vents keep Ample Ventilation for ultimate temperature regulation and reducing resistance, It makes your road, recreational or commute riding more effortless, and come with Visor protect your from sun

The motorcycle helmet meets or Exceeds FMVSS-218 and DOT Safety Standards.

Detachable Lens, Sun Shield and Chin Guard, Easy to Replace.

Ventilation System with Multiple Vents, Breathable and Keep Cool.