Keep your focus on your goal with the P-TEX(R) PRO Knit Compression Calf Sleeve, featuring body mapping compression to target sore and weak muscles and joints for support, comfort and relief. Support Your Performance Body mapping compression specifically targets the calf for improved muscle and joint support Seamless knitting technology is specifically engineered for long-lasting comfort during athletic activity Aids in reducing strain and fatigue of muscles to accelerate recovery times Comfortable Fit, Limited Distractions Easy pull-on design fits over targeted area Anatomical structure allows for contoured fit Additional Details Includes 2 sleeves that fit left or right calf Size Chart Small - 12 - 13.5" Medium - 13.6 - 15" Large - 15.1 - 17" X-Large - 17.1 - 19" Note: If any irritation or discomfort occurs, discontinue use and consult a medical professional. This product is not a substitute for medical care. Always seek professional medical attention for the diagnosis or treatment of pain, injury, or irritation. Do not apply over open wounds.