Specifically designed to be worn with Alpinestars range of off-road boots & kneepads, the RK-S Knee Brace Sleeve features a compact double-layer construction for high levels of stretch & overall comfort. Features The RK-S Fabric Knee Brace Sleeve features a foldable top & bottom design & is designed to be worn under a brace to prevent it from sliding down while riding Constructed with wear-resistant fabric for maximum durability made from stretch fabric for increased rider comfort Compact, double-layer construction made from durable, stretch fabrics for optimal rider comfort Flat locked seams & soft touch fabric for increased comfort Sublimation graphics for durability Compatible with all Alpinestars knee braces