Best Adjustable Bike Helmets in 2026

CONSTRUCTION - ABS Hard Plastic Shell with EPS Liner.

COMFORTABLE AND COOL - Classic skate style meets new-school technology. In the dirt or out on the street, this helmet is comfortable and cool.

ACTION FIT - Designed for street and skate helmets, this streamlined fit system offers an adjustable, secure fit with the turn of a dial.

【Motorcycle Helmet Quality & Warranty】With 3 protection layers to give all-round close protection: ABS engineering plastics, high density elastic cushioning EPS, skin-friendly soft lining and breathable sponge. The ATV helmets are DOT and ECE approved, 5 years warranty, surely will give customers a happy shopping experience.

【Fit Well & Comfortable Design】The dirt bike helmet has a simple but good design, high quality materials and good stitching, aim to fits well and feels comfortable, also has ample room right around our ears so wearing an earbud underneath is possible that we can still take a call when on our way. Motocross helmet totally has 3 ventilation holes to ensure air circulation and release inner heat, thus ensure breathable and avoid fog up.

【Dual Visor & Quick Release Buckle】Dual visor is a good combination of motocross helmet with a practical visor, both clear visor and internal sun visor has a notch to pull it down, and very easy to flip up, thus give you several riding options. Quick release safety buckle safe and easy to use, even when wearing gloves, the ratchet mechanism on the chin strap also make it easy to adjust.

SAFETY APPROVED: EN1078 (EU) and CPSC (USA) certified

QUALITY: Made from lightweight ABS hard plastic

ADJUSTABLE and COOL: Rear adjustment wheel, internal comfort padding, and adjustable straps help to ensure a perfect fit. Eleven little vents keep your child’s head cool.

PRACTICAL DESIGN - Hax motorcycle helmet meets DOT safety standards. The aerodynamic design helps reduce wind resistance and minimize wind noise. Multiple vents can quickly replace the stuffy air. Upgrade emergency padding removal pull, safe and convenient.

PERFECT COMFORT - Motorcycle Street Bike Helmet is an upgraded liner with anti-allergic design, which is extremely comfortable and has good impact resistance and provide better fit. The internal design of the Bluetooth headset slot is more convenient.

PRODUCT ADVANTAGES - Hax helmet lenses with clear and wide vision,with Pinlock Ready plastic nails,you can purchase an anti-fog lens' model DKS274 to install separately(Not inclued).It is suitable for PINLOCK 70 . Provide 2 different tail fins for replacement, and equipped with a thick cloth bag.You can also directly browse our store or details page to purchase Pinlock lenses.

Hornit Mini Lids Multi-Sport Kids' Helmets fit boys and girls from children up through early teens. Choose the size that fits the child's head circumference: Small (48 - 53 cm / 19" - 21"), or Medium (53 - 58 cm / 21" - 23"). All helmets are adjustable.

Made from durable, weather-proof ABS plastic. The dial tightens up the inner band. The chin strap and removable EPS foam liner help hold the helmet on and add impact protection. The rear safety light has 3 modes and lasts 20+ hours.

All children's helmets are designed in the UK and Mini Lids are compliant with both CPSC and EN1078 guidelines for USA and EU Markets.

【DLPACKJ】DLPACKJ Novel & Stylish german motorcycle helmet Design

【EXTREME COMFORT】 Moisture wicking fabric keeps your head cooler and more comfortable. Custom formed interior, for a super comfortable fit

【QUICK RELEASE】padded chin strap with quick release plastic buckle make it simple to get the helmet on and off

Advanced FIBERGLASS reinforced plastic shell, Light Weight and High Impact Resistant

Transparent PC Shield, Scratch Resistant

Features removable, washable COOLMAX comfort liner

◆ Suitable size: S55 ~ 56cm, M57 ~ 58cm, L59 ~ 60cm, XL61 ~ 62cm .

◆Material: engineering plastic shell, foam inner shell

◆Features: Adjustable chin strap Removable ear pads

😈 HELMET FLAIR DEVIL HORNS: These small “Nubbins” attach directly to your helmet to create a fun helmet design that stands out when you’re out there riding your favorite roads and trails, so you can express your rebellious, wild, and devilish side.

😈 PATENTED MAGNETIC ATTACHMENT: Interchangeable and compatible with a range of different helmet types and styles these can be used as dirt bike, welding, skate, ski, and bicycle helmet accessories with a quick pop-on design great for kids and adults.

😈 EXCLUSIVE HELMET ACCESSORIES: More than your average helmet attachment you’ll love adding flair to all your helmets! Choose our devil horns to create a Viking helmet or our bananas, puppy kitten ears, unicorn horn, and other great options!

Meet DOT safety standards and feature an aerodynamic design that reduces wind resistance and minimizes wind noise for a practical riding experience. The helmet is equipped with multiple vents that promote air circulation, and the hypoallergenic padding ensures both safety and comfort.

Upgraded liner with a hypoallergenic design provides a comfortable and secure fit with excellent impact resistance. The Bluetooth headset slot enhances convenience, and the helmet is also eyeglasses-friendly.

Hax helmet lenses offer clear and wide vision with Pinlock Ready plastic nails that allow for easy installation of an anti-fog lens (model DKS166, not included). The helmet comes with tail fins for and a thick cloth bag for storage. Pinlock lenses can be purchased directly from our store or details page.

TECHNOLOGY - Advanced polyacrylite shell. Three shell sizes to better fit head sizes and rider ages

COVERAGE - 3D cheek pads with emergency release and plastic visor screws for easy contact break-away

LIGHTWEIGHT & BREATHABLE - At 1500g, this helmet has 16 ports to channel air over a rider's head

Manufacturer Recommended Age: Suitable for 3 to 8 years old kids children toddlers boys girls kids helmet

【Elegant Infant Bike Helmet for Kids】 This baby girls helmet combines a super strong injection molded PC outer shell, a shock absorbing protective EPS foam inner shell and a soft sponge pad lining. 3 layers safely protect kids' little heads from impact while providing a comfortable feel. A helmet with a vivid pattern is a good choice for little girls boys.

【Adjustable Kids Skateboard Helmet】 There is an adjustable knob in the back of kids bike helmet, the head circumference is 20-21.6 inches (51cm-55cm), one kids helmet can serve your children ages from 3 to 8 years old. Adjustable elastic bands and buckles make the youth helmet fit into your kid’s small head, this will reduce the safety hazard caused by falls.

【Motorcycle Helmet Quality & Warranty】With 3 protection layers to give all-round close protection: ABS engineering plastics, high density elastic cushioning EPS, skin-friendly soft lining and breathable sponge. The kids motorcycle helmets are DOT and CE approved, 5 years warranty, surely will give customers a happy shopping experience.

【Comfortable Fitting Design】The kids dirt bike helmet has sufficient padding inside to protect the head and the sides, high quality materials and good stitching feels nice and sturdy for how light it is. This youth motorcycle helmet also has space for wear headphones if you want.

【Adjustable Sun Visor】Helmet flat black is sleek and cool looking and goes with both motorcycle and bike, easy to clip on and off, also great for putting stickers on. The sun visor is adjustable to slide up and down or just take it off, very flexiable for daily use.

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.

HELMET SAFETY: The bicycle helmet is CE EN 1078 certified. We always focus on safety and quality, to better distribute impact energy, the mountain bike helmet is made of impact-resistant ABS and reinforced with a 2cm EPS foam coating, also with a removable and breathable sponge to protect our head.

ADJUSTABLE STRAP & LED: Bike helmet adjustable chin strap makes the size fit on just about anyone head and easy to adjust to get a perfect fit, quick-release buckle makes it easy to put on and take off. Features a safety reflective light in the back, have 3 different settings(static, blinking, rapid moving) that can light up during the ride for increase visibility to provide extra safety actively, actually the knob as well to adjust size, please remove the plastic piece before turn on LED.

COMFORT FITTING & VENTILATION: This road bike helmet has good ventilation with extra vents which keeps our head cool during a ride on these sunny days. It has a strap on the back for us to adjust the fit with a knob and the knob has an embedded LED, particular minimalist style.

Ultra Lightweight - The ILM-610 dirt bike helmet is made of Glass Fiber Reinforce Plastic(GFRP, also known as Fiberglass composite reinforced material), which allows the helmet to only weigh around 2.53 lbs, much lighter than normal ABS dirtbike helmets.

Much Safer - Different from ABS, Fiberglass ensures the helmet with more durable and stronger impact resistance performance, effectively absorbs external forces.

DOT - The ILM-610 fiberglass offroad helmet meets and exceeds DOT safety standards. ILM is as always implementing global mainstream standards for testing experiments.

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 confortable with 4 air inlets and 9 air outlets connected with flow channels

Zoom Ace Urban adjustment system with handy adjustment wheel for customisable fit

Forced Air Cooling Technology: Sophisticated ventilation system for an optimal head climate

Size adjustment by means of a half ring made from particularly hard-wearing and slightly malleable plastic for optimal stability and form fitting

Zoom Ace Urban: Finely adjustable adjustment system with handy adjustment wheel for customisable fit

Multi Shell In-Mold for durable bonding of multi-part outer shell and shock-absorbing helmet material (EPS)

Good ventilation with 4 air inlets and 14 air outlets connected with flow channels

ActiCage: Structural reinforcement integrated in the EPS to optimise stability

ActiCage allows for large ventilation openings without compromising on the helmet’s safety

Multi Shell In-Mold for durable bonding of multi-part outer shell and shock-absorbing helmet material (EPS)

Good ventilation with 4 air inlets and 14 air outlets connected with flow channels

●【HALF HELMET DESIGN】The helmet has a fashion Retro half-helmet design reminiscent of early riding helmets. Coming in matte Black or glossy Black, White, this helmet will look sleek with any Scooter/ motorcycle /Street Bike/Touring/Personal Watercraft/balance cars.

●【ADJUSTABLE CHIN STRAP】The helmet has an adjustable chin strap equipped with sliders around the ear-loops in order to accommodate for any head size or shape. When adjusted correctly, provide maximum protection with maximum comfort.

●【HELMET MATERIAL】Our strong ABS engineering plastic shell combined with a dense foam. Meets or exceeds safety standards will protect you from accidents and keep you safe!

In-Mold for a durable connection with the outer shell with shock-absorbing helmet material (EPS)

Good ventilation with 5 air inlets and 7 air outlets connected with flow channels

Semi-enclosing plastic ring connected to the adjustment system for optimum stability and form-fitness

Professional Grade Motorcycle Helmet: DOT FMVSS 218 standard approved. Exactly what you need for Street Bike, Racing, Motocross, ATV, Dirt Bike, MX, Quad, Adventure etc, fit for men and women.

Outstanding Materials: Advanced FIBERGLASS reinforced plastic shell, Light Weight and High Impact Resistant.

Replacement Visor System:  Transparent PC Shield, Scratch Resistant, easy to remove or install different color visor.

HELMET: SUPERIOR BUILD. We follow 3 crucial steps to achieve a solid constructed bicycle helmet by first placing the exterior shell in the mould, then reinforcing it with a skeleton and finally adding the foam that will hold all the parts connected.

HELMET: PROTECTED, VENTED AND COOL. Everything the cyclist in you could ask for: shock absorption technology, 22 massive air vents for an outstanding airflow across the head and a low profile, innovative design!

BIKE LIGHT: ATTACHES IN SECONDS and STANDS FIRM ON THE BAR! Both head lamp and warning tail light holders are equipped with a screw that can be handled manually. No Tools Required. They are provided with a pair of rubber brackets which are adjustable on any handlebar size - even if it is a road motorbike or e-bike! It is also EASY TO RELEASE and take it with you, making it theft proof pack!

●【HALF HELMET DESIGN】The helmet has a fashion Retro half-helmet design reminiscent of early riding helmets. Coming in matte Black or glossy Black, White, this helmet will look sleek with any Scooter/ motorcycle /Street Bike/Touring/Personal Watercraft/balance cars.

●【ADJUSTABLE CHIN STRAP】The helmet has an adjustable chin strap equipped with sliders around the ear-loops in order to accommodate for any head size or shape. When adjusted correctly, provide maximum comfort.

●【HELMET MATERIAL】Our strong ABS engineering plastic shell combined with a dense foam for a comfortable experience.

The helmet can be easily separated into its constituent parts for recycling at end of life

A lightweight EPS liner gives optimized protection

An outer shell in fabric reduces use of plastics and improves recyclability