OWSOO Multi-Sports Safety for KidsTeenagersAdults Cycling Skating Skateboarding Scooter

Injection ABS shell and EPS foam for impact resistance and weight. 11 air vents to reduce sweating and stay cool. Adjustable dial for a customized fit. Small: 52 - 54cm / Medium: 55 - 57cm / Large: 58 - 61cm. Adjustable side straps and quick-release buckle. -wicking soft inner pad, removable and washable.