These hard shell reinforced certified 3DF knee guards scores a total of 20 points in the Leatt protection rating system. Enduro offers full hard shell knee protection with co-molded soft edges for comfort. They are slim, lightweight, comfortable and has a great fit with a silicone cuffed MoistureCool sock. For a softer fit look at 3DF 5.0. For a slimmer protector look at the AirFit Pro and for a hard and soft shell combination look at the Hybrid. Hard shell knee guard tested and certified as impact protection: Knee EN1621-2 Total Leatt protection score 20 points Hard shell deflecting and sliding surface 3DF impact absorbing body Silicone lamination to keep protector in place New MoistureCool and AirMesh fabrics Wicking Anti-microbial Silicone printed adjustable non slip cuffs Soft rubber edges gives great protection feel and comfort 3D design for optimal fit with specific left and right sides Vented plates for maximum airflow Weight: 500g – 1.1 lbs (pair) Please look at our sizing chart for best fit: #S/M #L/XL