Product Description Specifications:Protection Zone:kneesConstruction:foamSpecial Fabrics:Neoprene, D3OCertification Number(s):EN 1621-1Technology:D3O D3O is an extremely flexible and lightweight material that provides excellent protection. D3O is a world leading manufacturer of shock absorbing materials. Size Guide:Our size guide will help you choose the correct size. Manufacturer Number:33835-001 Contents:1 pair of Manufacturer: Fox Head Germany GmbH Lilienthalallee 40 80939 München Germany info@foxhead.com