Come and see our amazing products! This Skateboard helmet is made of strong ABS plastic shell and shock absorbing EPS foam liner, protect your head effectively. Certified to CPSC safety standards. Skateboard helmet with adjustable straps allow to personalize the fit to your head easily, quick release buckle, easy to take off and take on. The skate helmet Ideals for skateboarding, scooter, skate, biking, long boarding, inline skating, roller skating, hoverboard, climbing and so on. 3 Size: S: 19.7-21.7 inches (50-54cm ) , M: 21.7-22.4 inches ( 55-57cm ), L: 22.8-24 inches ( 58-61cm ). NOTE: Please choose your size according to head circumference. The price is for ocean shipping. Pls confirm further with us if any query about packing info, inventory status and time schedule.