Best Adjustable Bike Helmets in 2026

💝 IMPACT RESISTANCE: XJD toddler helmet combines a super strong injection molded outer shell and a protective EPS foam inner shell.

💝 HEAD SIZE: X-Small: 18.11-20.08 inch(46-51 cm), suit for 1-5 years old toddler; Small: 20.47 - 22.05 inch (52–56 cm), suit for 5-8 years old kids. We offer two different sizes of toddler helmet in order to give a comfy fit for kids.(Use a string and tape measure to measure your child’s head before order)

💝 SAFE AND COMFORT: XJD kids bike helmet equipped with 14 air vents, integrated bug mesh in the front vents that will keep your little rider comfortable of exercise, reduce sweating. The button closure is easy to open and close. It's covered in soft velcro padding that's comfortable for little chins

LIGHT FULL FACE helmet. MIPS, EPP (slow speed), EPS (high speed) coverage. 690 grams

EFFICIENT VENTILATION SYSTEM to keep you cool. 25 high-flow intake & exhaust ports for high airflow

3 YEAR WARRANTY. Includes bag with breathable mesh paneling. FIDLOCK magnetic buckle system.

Dual certified, urban-style helmet for skateboarding and biking features a vented ABS shell with a subtle brim, and an impact-absorbing EPS liner

Conehead liner construction has collapsing cones that absorb energy and spread force sideways within the helmet; ideal for biking, skateboarding, rollerblading, BMX, derby, and commuting

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

Complies with U.S. Consumer Product Safety Commission Safety Standard for Bicycle Helmets for Persons Age 1 and Older

LED LIGHT:Light up with 3 modes-Steady Flash/Slow Flash/Fast Flash,,Batteries(2*LR41) included.

TWO SIZE AVAILABLE: XS: 18.5''-20.5''(47-52cm) suitable for toddler infant ages 2-4/3-5 years old ; S: 19.7''-21.2''(50-54cm) suitable for child boy/girl ages 5-8 years old.

STYLE - Nino brings fun graphics, cool colors and Bern's patented soft flip visor to the littlest riders.

COMFORT - Quick-adjust, hook-and-loop stabilizing adjustment at back of head ensures proper fit. Wicking polyester lining keeps moisture away from head and face; removable liner is machine washable.

PROTECTION - ZipMold construction injects high-impact liquid foam and fuses it to a lightweight PVC shell for a seamless, low-profile fit and high strength-to-weight ratio. Meets Safety Certifications ASTM F 2040, CPSC and EN 1084.

Size XS - Suggest for infant/toddler 1-3 years old

Size S - Suggest for kids 4-8 years old

Size M/L - Suggest for kids/Teens over 8 years old

[IMPACT RESISTANCE] Build-in reinforced PC shell and high density EPS foam adds durability and extra protection from potential injuries during your kids outdoor biking sports.

[TWO SIZE AVAILABLE] XS: 18.8''-19.7''(48-50cm) suitable for toddler ages 2-4/3-5 years old; S: 20''-21.3''(51-54cm) suitable for kids boy/girl ages 5-8 years old. Make sure to measure your kid's head before choose the right size.

[VENTILATION&COMFORTABLE] This lightweight bicycle helmet that is really relief the pressure for baby kids. With 14 ventilation vents and adjustable fit dial that will keep little heads cool and comfortable even on hot summer days.

DOT AND ECE CERTIFIED: Thoroughly tested and fortified in case of a crash. Ideally, street bikes, dirt bikes, snowmobiles, off-road, and ATVs, can be used for some entry-level racing competitions as well.

BUILT-IN ACTION CAMERA MOUNT: Designed to install the camera and capture all your riding adventures and racing competitions. Moreover, a headlight can also be attached to improve riders' safety. (Camera and light are not included)

INTERIOR & COMFORT LEVEL: ILM chooses to equip the helmet with a 3D comtex inner liner which is softer and super comfortable and has high moisture absorbs capabilities. Keeps your head cooler and dryer during a long ride.

&#9989 <b>Approved by DOT for 100% legal use<b/>: Due to its high-quality workmanship, the N325 complies with the required regulations in the USA and meets the FMVSS 218 Standard, which means that it is approved and legal for the whole US road traffic."

&#9989 <b>Quick-release fastener<b/>: The helmet has a european style one-handed Click-n-Secure quick-release fastener, which ensures uncomplicated opening and closing even when wearing gloves."

&#9989 <b>Perfect-Fit<b/>: The lining is super soft, partially removable and washable. It has a preventive effect against odors and ensures gentle skin tolerance even in the case of allergies. Thanks to its padding, the helmet conforms particularly comfortably to your own head shape.

DOT CERTIFIED FOR YOUR KID'S SAFETY: Thanks to its lightweight but extremely durable composite thermal polymer shell, our youth motorcycle helmet keeps your kid safe and comfortable when riding. Light in weight and elastic in design, our dirt bike helmet provides optimal impact absorption to meet DOT safety standards. Super strength at minimum weight!

EASY-BREATHE VENTILATION SYSTEM: Our helmet's design is optimized to maximize airflow throughout the helmet for enhanced comfort and optimal temperature control. Thanks to our Click-n-Secure system and the Quick Release Clip, our youth bike helmet can be easily fastened and unfastened with just one hand, even with gloves on!

REMOVABLE INNER PADDING: Our kids dirt bike helmets include a heavily cushioned, breathable and very comfortable interior that offers a very pleasant feel thanks to its three-dimensional head shape. The inner padding is removable and washable for maximum functionality. Lightweight, Heavily Cushioned and Comfortable... your kids will love riding in our Armor youth motocross helmet!

Smallest DOT-approved German helmet ever made; Meets & exceeds D.O.T. FMVSS 218 safety standards

Biker helmet provides superior impact protection with nylon strap retention & quick-release system

German motorcycle helmet has 1 shell size & employs 5 helmet padding sizes ranging from XS to XL

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

&#9989 <b>Approved by DOT for 100% legal use<b/>: Due to its high-quality workmanship, the N325 complies with the required regulations in the USA and meets the FMVSS 218 Standard, which means that it is approved and legal for the whole US road traffic."

&#9989 <b>Quick-release fastener<b/>: The helmet has a european style one-handed Click-n-Secure quick-release fastener, which ensures uncomplicated opening and closing even when wearing gloves."

&#9989 <b>Perfect-Fit<b/>: The lining is super soft, partially removable and washable. It has a preventive effect against odors and ensures gentle skin tolerance even in the case of allergies. Thanks to its padding, the helmet conforms particularly comfortably to your own head shape.

DOT certified for Safety, meets or exceeds FMVSS-218 and DOT safety standards

Advanced Polycarbonate Composite Shell, 3.35 lbs

Dual density EPS liner(XS-2XL); 3XL-5XL are single density

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