All our helmets are certified for scooting, cycling, and skating (EN1078 safety Standard) Adjustable and removable spin dial gives a snug comfortable fit. Extra padding for comfort & safety . Key Features are must have for all scooters, cycle, skate and bike riders. Adjustable spin dial for the perfect fit. Extra padding for comfort and safety. Air vents to keep heads cool. Certified for scooting, cycling and skating and biking