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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.
12 vents provide sufficient air flow and reduce sweating. Plus, the inner lining pads are removable and washable, keep the wearer stay cool and comfortable.
Fully adjustable for a custom fit, provided by the crank adjustment dial, and length-adjustable chin straps. The durable quick-release buckle make it easy to fasten and take-off.

Product Description

S: 51-54 cm/ 20.0-21.3 in

M: 55-58 cm/ 21.6-22.9 in

L: 59-61 cm/ 23.2-24.0 in

The adjustment dial and straps provide a custom fit

12 vents provide sufficient airflow,

The pads are removable and washable, keep user comfortable