PRODUCT DETAILS | The Oxelo design team has developed this helmet to keep young riders safe on their skates, skateboards and scooters. | Stability: The helmet's shape and adjustment dial keep it from moving around. | Adjustable: Dial for adjusting the fit. Buckle and dividers for adjusting the strap. | Lightweight: 340 g in size S. | Ventilation: 11 large vents for good ventilation.