Slip-On Knee Guards Designed with D3O The Launch D3O Knee Guard offers an excellent combination of impact-absorbing protection with a value-focused build. The CE-certified D3O insert works seamlessly with the slip-on design to provide all-day comfort and confidence. Features - CE certified D3O insert for world-leading impact protection-?EN1621-1 Level 1 CE Certification - Pre-curved ergonomic fit - Slip-on fit with hook-and-loop adjuster - Perforated neoprene offers comfort & breathability Construction - 20% nylon / 40% SBR / 30% PU / 5% polyester / 5% spandex