Hard-shell, extended length design with 3DF impact foam that offers premium protection. No sock / sleeve and Leatt® used a strap system to make taking these on and off easier and possible over pants. Now with a new slimmer knee pad profile and improved sliding surface, it offers a great fit with ergonomic left / right shapes. CE tested and certified protection that scores a total of 20 points in the Leatt protection rating system. Total Leatt® protection score of 20 points. Hard shell and 3DF AirFit ventilated soft impact foam. CE tested and certified as impact protection: Knee and shin EN1621-1. Full shin extended length - EXT. New improved hard shell sliding surface. 3D design for optimal fit with specific left and right sides. Slim shin plate that also fits inside boots. Weight: from 600 grams (1.32 pounds) per pair.