After three years in development the Slim Knee achieves the perfect balance of mid-weight protection, flawless fit, advanced features, and a low-profile design. Fusion groove Channel with Memory Foam System to lock the pad into the ideal position - Streamlined slide-on design that hugs firmley and comfortably with minimal bulk - Light weight fast-drying seamless interior finish - Ballistic Nylon with industrial weight stitching ensures durability