Material : nylon knee brace : knee support compressa knee sleeves men : knee sleeve knee brace running : compression knee brace knee brace meniscus tear : knee stabilizer patellar stabilizing knee brace : knee pain relief Product Description: Package include:         1Pcs* Compression Knee Sleeve       How to determine sizing?   Please measure the circumference of your thigh above the center of your knee cap to get the desired compression and comfort. And refer to the size chart.    Size M:      Length: 28cm/11inch      UP Circumference: 34-54cm/13.4-21.2inch      Down Circumference: 30-50cm/11.8-19.7inch Suitable for weight about 50-65kg  Size L:        Length: 28cm/11inch        UP Circumference: 36-58cm/14-22.8inch        Down Circumference: 32-54cm/12.6-21inch Suitable for weight about 65-75kg    Size XL      Length: 28cm/11inch      UP Circumference: 39-62cm/15.4-24.4inch      Down Circumference: 34-58cm/13.4-22.8inch Suitable for weight about 75-100kg About the product:    1. Double spring supports--Adopts soft elastic spiral-shaped supports, which prevents the knee brace from easily deformation, increase the auxiliary and shrink the foot joint, easy to take on and off. 4.High Quality: Made of superior nylon material. Please note other knee support braces don't provide the level of support, are very stiff, uncomfortable, and won't last as long as ours.     2.Our knee brace glides over your leg and hugs your knee area to improve performance during sports or everyday activities. Its breathable, elastic material prevents sweat buildup, while offering hi-tech, 3D knee protection. It's perfect for men, women and elder at any age. Unit: 1pcs   Note: the unit of this item is only 1pcs, no have left and right leg differences, if you mind it, please be cautious to purchase.  Multi Functions:     ---Helps to eliminate joint displacement and discomfort.     ---Reduces inflammation and swelling associated with injury.     ---Improves blood circulation, Promotes faster muscular recovery.     ---Supports the knee cap and joint when stationary and during motion.     ---Alleviates soreness and stiffness after exercise or long periods of standing.