The Youth Launch D3O® Knee Guard offers an excellent combination of impact-absorbing protection with a value-focused build for smaller riders. The CE certified D3O® insert works seamlessly with the slip-on design of the guard to provide all-day comfort and the confidence to try new trails.Key Features:EN1621-1 Level 1 CE Certification,Pre-curved ergonomic fit,Slip-on fit with hook and loop adjuster,Perforated neoprene offers comfort & breathability,40%Sbr, 30% Pu, 20%Nylon, 5% Polyester, 5% Spandex.