Features:• Fidlock® magnetic closure for easy, one-handed opening and closing, Weight: 380g (±25g), Size adjustment with new micro-adjust 1 Hand Retention System including reflective sticker, Easy strap adjustment for perfect individual fit, Sweat-absorbing and skin-friendly lining (9mm thickness for size S/M; 6mm for size L/XL), detachable and washable (hand-wash), Oversized vents for maximum airflow and cooling, Adjustable and detachable visor. Complies with U.S CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and older