Leatt listened to riders, and here it is--their zipper 3DF impact foam knee pads. Based on their award-winning 3DF 5.0 pad, they redesigned the chassis to incorporate a zipper that allows you to easily put on and remove the pads. They created a design incorporating a zipper that would never fail, but still allow you to bend your knee. It also features silicone-printed and adjustable non-slip leg straps, a pre-curved 3D design for better fit and function, and an abrasion-resistant Aramid outer layer for durability. CE tested for certified protection that scores a total of 13 points in the Leatt protection rating system. - CE tested and certified as impact protection: Knee EN1621-1 - Non-scratchy zip closure system for easy removal without taking shoes off - New slim, CE impact certified knee pad profile - New ventilated, perforated Neoprene sleeve - New anti-slip calf band and silicone grip lining - New anti-odor MoistureCool and AirMesh wicking fabrics - Weight: from 520g (1.15lbs) pair