Professional material: made of high quality 68% nylon and 32% spandex. Lightweight, breathable and adjustable wearing comfort with 4-way elastic stretch that won't roll, slide or slip, improves blood circulation and oxygen supply to the blood, increases muscle performance and accelerates recovery of injured muscles, joints and much more. PAIN RELIEF & PROMOTES MUSCLE/JOINT RECOVERY - Compression is proven to promote muscle recovery and injury prevention. Our knee sleeve relieves muscle stiffness and extra soreness and provides rejuvenating relief from arthritis, osteoporosis, tendonitis, pain and discomfort in all situations. ADJUSTABLE UNIQUE BIDIRECTIONAL SUPPORT: Elastic straps with double adjustment provide custom fit and compression for all day long. SUITABLE FOR ALL SPORTS - Our knee brace provides targeted compression with moderate support for the knees. The best knee support and knee support for running, athletics, jogging, cycling, weightlifting, squats, football, basketball, volleyball, skiing, tennis, hiking, lifting and yoga, almost any sport and movement! Guaranteed performance: designed to protect the knees, accelerate recovery and improve muscle endurance. If our knee brace does not fit, please let us know and we will send you the right size for free. If our product is not what you are looking for for for any reason, you will receive a full refund, no questions asked!