Copper Knee Compression Sleeve-1 Pair Infused Sleeves for Enhanced Circulation & Tendonitis Pain Relief - Increase Athletic Performance, Reduces Swelling & Accelerates Recovery INCREASE PERFORMANCE & RECOVERY - Our compression sleeves stimulate blood flow & oxygen to muscles for better performance, while increasing the removal of waste products such as lactic acid to help reduce soreness during and after working out SPECIAL LIGHT WEIGHT MOISTURE WICKING FABRIC - Our graduated compression is specially designed to provide a firm comfortable fit with 18-22 mmHg of compression. WORK OR PLAY - Our compression sleeves benefit you whether you are an athlete working out for hours, a working professional who is on the move or a person who just needs a little extra knee support. ADDED PROTECTION - C4 sleeves protect in many ways. Warm-up for that morning run, reduce knee pain and fatigue from jarring muscle vibration for that marathon runner, provide warmth and scratch protection during that morning trail run, can reduce the risk of blood clots in individuals with poor circulation. The list goes on and on. HIGHEST QUALITY MATERIAL - Our athletic sleeves are made a 80% Copper Nylon/ 20% Spandex blend of breathable material designed to provide the desired support without sacrificing a comfortable fit AND they come with a MONEY BACK GUARANTEE no questions asked.