Leatt 3DF Knee Guards 6.0 The Leatt 3DF 6.0 Knee Guards have been CE tested and certified as impact protection, they are soft knee guards with additional co-molded hard shell sliders. Although flexible and soft, the sides are made of 3DF AirFit impact foam that will harden upon impact to provide additional protection. The pre-curved design offers a perfect fit that is comfortable and will stay put thanks to the anti-slip knee cap and calf band with a silicone grip lining. Features: Soft knee guard with co-molded hard shell sliders 3DF AirFit ventilated soft impact foam CE tested and certified as impact protection: Knee EN1621-1 Anti-slip calf band and silicone grip lining Silicone printed and adjustable non-slip leg straps Anti-odor MoistureCool and AirMesh wicking fabrics Pre-curved 3D design for optimal fit Side impact protection Weight: 530g (pair)