Best Adjustable Bike Helmets in 2026

DESIGN - A bright pink helmet that has 3D kitty ears and a holographic tiara with a large red gem!

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 your little princess to use while riding a bike, scooter, skateboard or rollerblades!

DESIGN - Flexible 3D red mohawk with black tips and fine multi-color line graphics on a matte black base

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

DESIGN - The 3D fin hawk lights up with 5 LED lights. Auto-shut off feature to conserve battery.

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 your little rad ripper to use while riding a bike, scooter, skateboard or rollerblades!

Recommended for children 5-8, 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.

Side squeeze buckle for easy adjustment

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.

MARKET-LEADING SAFETY: 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 vertical position and tension with the Roc Loc 5.5 fit system

✅【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.

FUSION IN-MOLDING POLYCARBONATE SHELL AND PROGRESSIVE LAYERING - A process pioneered by Bell bonds the helmet's outer shell to the EPS foam liner to create a sturdier helmet. The process of engineering a helmet liner with variable EPS foam densities to better manage the transfer of energies after some impacts.

FLEX SPHERICAL + MIPS - Comprehensive energy management. Flex spherical enhances our ability to address high-speed impacts, low-speed impacts, as well as rotational impacts. Think of it as comprehensive protection, with the added bonus of being able to design better helmet ventilation.

X-STATIC PADDING AND WRAPAROUND CHIN BAR - Quick-drying materials, woven with real silver fibers. A removable protective chin bar, designed for trail riding adaptability -- no tools required. Warning: all chin bars have limits, and serious injury or death can occur. Read the owner's manual carefully before using your helmet.

Adjustable Helmet Size: VG110 model bike helmet is suitable for adult men and women, 3 sizes available, size M: 21.3-22.8 inch (54-58 cm); size L: 22.4-24 inch (57-61 cm); size XL: 23.2-24.8 inch (59-63 cm). It is easy to adjust the bicycle helmet size with hand. Our bicycle helmet will give you a comfortable and happy cycling trip.

Cool and Lightweight Cycling Helmet: Our bike helmet is designed with 21 breathable vents, the cooling vents can move airflow over your head to stay cool and dry. This cycling helmet only 310g (0.68 lb) will not cause any burden to the rider's head during cycling.

Impact Resistance: Our bike helmet is made of high-density PC shell and EPS foam, with durable hard shell and soft pad can absorb the pressure caused by external impact. Our bicycle helmet provides better protection when road cycling or mountain biking, greatly helping to decrease and buffer the impact.

✅【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.

【Kids Helmet for Multi-Sports 】Intended for：3-8 years old kids| Size: 18.9-21.3 inch (48cm-54cm)| Color:Black, Blue,Pink, Red, Green. Adjustable toddler helmet size to accompany kids' growth, It is a perfect gift for boys and girls.

【High Quality Durable Material】Our kids helmet is made of ABS and shock-absorbing EPS foam, Constitute multiple protection system, specially designed for multiple-sports head protection.

【Adjustment-Comfortable】This kids bike helmet has a special adjustment dial system & adjustable straps to ensure your children achieve a perfect and safe fit. And 11 individual air vents that will keep your kids Cool & Comfortable for fun when playing.

Youth Helmet Glove and Goggle combo The quality and price you expect from TYPHOON HELMETS. Typhoon Helmets is American owned and we've been in business selling high quality certified helmets for more than 10 years

PLEASE PLEASE measure for size, we cannot impress on you enough how important it is that you measure for the correct size. Each manufacturers sizing is different. Measure the circumference of the largest part of the child's head, (usually just above the eyebrows) in inches: Use a paper tape measure or a string and do not pull it too tight, loose like a hat would fit.

SIZE CHART Youth Small: 18 to 19, Youth Medium: 19 to 20, Youth Large: 20 to 21, Youth XL: 21 to 22. Head shapes can affect how a helmet fits, the size chart is meant to be a starting point.

AVAILABLE IN TWO SIZES: Small (18.5-20.5 in) and medium (20.5-22 in)

ADJUSTABLE-FIT DIAL allows this kid & toddler helmet to grow with your child

14 VENTS to keep your little one cool, even on hot days

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

VENTILATION: 25 wind tunnel vents with internal channeling

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.

Reinforced polycarbonate shell in-molded with the EPS liner extends down the sides and back of the head for maximum coverage and durability

Triple position adjustable retention system allows customized fit for various eyewear, head shape and riding styles

Single-piece, ultra-plush, removable and washable comfort liner made of a moisture-wicking material for a dry, comfortable feel

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

Proven MIPS impact protection system reduces rotational forces in a crash by absorbing and redirecting energies and forces otherwise transmitted to the brain.

Extended converage for added safety

Optimized venting with channeled, in-molded EPS provides efficient cooling.

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 vertical position and tension with the Roc Loc 5.5 fit system.

❤Double Adjustment: Well-attached & long-lasting adjustment dial and skin-friendly adjustable chin strap maxmize the best fit and comfortable wearing.

❤Use for: This helmet could be used for many occasions such as bicycling, roller skating, skateboarding, hip-hop, rafting, head turning, river rafting, expansion, etc.

❤How to use: Before you use the helmet, please untie the buttons that connect the straps on both sides of the helmet. Depending on the size of your head, rotate the red adjustable knob on the back of the helmet and attach the button in the middle of the strap

SAFETY - This PHZ. adult mountain helmet meets US & EU cycling standards.

ADJUSTABLE DIAL & STRAPS - The adjustable fit system for men and women. 2 sizes for choice, suggested head circumference: M (55-58CM), L (59-61CM)

INTEGRATED SAFETY REAR LIGHT - Mountain helmet with detachable USB rechargeable light. Best for night riding with 3 lighting modes, Steady, Flash and Wave.

[Dynamic Design]: This AHR Adult Offroad Helmet features a full face coverage with a cool and streamlined design, along with an ergonomic oval shape fitting perfectly on most head sizes, ideal for use by professional motorcyclists in motocross or dirt bike competitions or for use by motorcyclists for daily motorcycle or ATV rides

[Safe & Comfortable]: Equipped with DOT certification for safety assurance, it is made of lightweight, strong and impact-resistant ABS shell with high-density EPS lining for great shock absorption, providing you a comfortable & safe ride

[Good Ventilation & Streamlined Design]: Featuring multiple vents along with a breathable mesh liner for ventilation, it protects the user from excessive heat, ensuring a cozy and comfortable wearing experience even under the hot sun, along with streamlined design to reduce wind drag

Recommended for ages 5+ but will fit most heads measuring 50-54 cm. 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.

Pedal like you're firing on all pistons

Rule the road with your cars 3D flames

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

❤Double Adjustment: Well-attached & long-lasting adjustment dial and skin-friendly adjustable chin strap maxmize the best fit and comfortable wearing.

❤Use for: This helmet could be used for many occasions such as bicycling, roller skating, skateboarding, hip-hop, rafting, head turning, river rafting, expansion, etc.

❤How to use: Before you use the helmet, please untie the buttons that connect the straps on both sides of the helmet. Depending on the size of your head, rotate the red adjustable knob on the back of the helmet and attach the button in the middle of the strap

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 - Youth off-road helmet meets or exceeds DOT safety standards to ensure quality and safety, sharp looking design makes you stand out from the crowd, ideal for dirt bike, motocross, ATV etc.

🚀Lightweight & Comfortable - Upgraded lightweight ABS shell with a thick, high density fully vented EPS liner, ventilation opening system for air intake and exhaust, which brings you a better protection and comfortable wearing during riding

🚀Helmet Size - 【S: Child(cm): 49-50; Inches: 19.28''-19.68''】;【 M: Child(cm): 51-52; Inches: 20.07''-20.47''】;【L: Child(cm): 53-54; Inches: 20.86''-21.26''】;【XL: Child(cm): 55-57.15; Inches: 21.65''- 22.5''】

【High Safety Protection】Shinmax bike helmet is carefully constructed with an all-in-one polycarbonate solid PC shell and high-density shock-absorbing EPS foam can absorb the pressure caused by external impact, giving it excellent shock absorption and drop resistance, effectively reducing impact forces and providing you the most reliable safety.

【USB Rechargeable Rare Light】Specialized bicycle helmet is designed with plug-in USB rechargeable LED light,3 Safety Red lighting modes bicycle helmet - Normal on, Fast flashing and Breathing light which can remind other riders or cars behind you to recognize your direction clearly,makes your cycling more safer and brighter at night or in the darkness weather.The rear light is waterproof, soaked in water can still be used.

【Detachable Magnetic Goggles】 Adult bike helmet comes with Detachable Magnetic Goggles Visor Shield can be used as a sunglasses with 3 strong magnet makes it easy to removed or glue it on, Not only protect your face against wind and sand, But also block the strong ultraviolet light, UV400 protection. The adult bike helmet can fit for mountain bike and road bike cycling.

Recommended for ages 1-3, but will fit most heads measuring 48-52 cm

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.

Flexible rubber mohawk with red tips

🚀USA shipping: We have two warehouses in Rancho Cucamonga, California and Harrisburg ,Pennsylvania, United States. So we can ship your orders out as soon as possible.

🎁The best gift for a child. New style design will make you look so cool and fashionable

🏅Well vented all purpose product for summer or winter riding and off-road riding