Copper Ankle Compression Sleeve-1 Pair Infused Sleeves for Enhanced Circulation & Plantar Fasciitis Pain Relief - Increase Performance During Exercise, 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 from foot to lower leg. VERY IMPORTANT - These sleeves are designed to give firm support yet be comfortable. Use this size chart as a guideline for proper fit. Men - SMALL size 3-5, MEDIUM size 5.5-9.5, LARGE size 10-14. Women - SMALL size 3-6.5, MEDIUM size 7-10.5, LARGE size 11-15. WORK OR PLAY - Our compression sleeves benefit you whether you are an athlete working out for hours, a working professional on your feet regularly like retail workers or someone who remains immobile for long periods of time ( airline travelers ) or has poor circulation. ADDED PROTECTION - C4 sleeves protect in many ways. Warm-up for that morning work out, reduce foot or ankle soreness and fatigue from repeat muscle jarring and vibration while running, provide warmth during that morning trail run, help dancers, nurses and other professionals prevent plantar fasciitis, 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.