Pivoting Hard Shell Impact Foam Protector. Total Leatt® protection score of 12 points. Super slim, ReaFlex gel impact protection. Sliding hard shell knee cup for added protection. CE tested and certified as impact protection: Knee EN1621-1. Knitted base layer for superior comfort all day long. Pre-curved 3D design for optimal fit and function. Side and upper knee impact protection. Premium comfort using MoistureCool and AirMesh wicking fabrics. Silicone printed, cupped knee grip and non-slip cuffs. All protection materials perforated for ventilation. Weight: from 300 grams (0.66 pounds) pair.