The Alpinestars Knee Brace Sock is Lightweight, non-restricting knee sock which contains DuPont KEVLAR® fiber to provide an additional layer of protection when used in conjunction with knee guards. Durable stretch Kevlar with elastic mesh at back of the knee for ventilation. Elastic edge with silicone grip band maintains a snug fit. Sleek fit offers constant compression and soft tissue support. CONSTRUCTION • Light and durable advanced poly-fabric construction is specifically cut for optimized fit around knee articulation. • Offers added levels of comfort and personalized fit to knee guards. • Breathable open mesh on back of knee for added ventilation. • Elastic edge with silicone grip band maintains a tight fit. • Creative graphic pattern design.