Professional Grade Material: Made of high quality 68% nylon and 32% spandex. Designed for all day comfort, flexibility moisture wicking, anti-odor, breathable & ultra-durableand, doesn't roll, slide or slip down, enhance circulation & oxygenation of the blood thereby increasing muscle performance & accelerate recovery of injured muscles, joints & much more. Pain Relief&Promotes Muscle/Joint Recovery: Compression is proven to Promotes muscle recovery and injury prevention, our brace relieves muscle stiffness, extra soreness and offers rejuvenating relief from arthritis, osteoporosis, tendonitis, pain & discomfort, allowing you to perform at your peak in all situations. Adjustable Unique Bidirectional Support: Dual adjustment elastic straps provide customized fit and compression for all day comfort. Suitable for Any Sports: all sports activities that involve a great amount of stress on the joints like: running, basketball, soccer, football, golf, cycling, tennis, hiking, volleyball, skiing and much more,improve muscular endurance, protect the knees.