Specifications: This calf compression sleeve is designed for active people. It helps to improve blood circulation in the lower legs and reduce muscle fatigue caused by the vibrations while exercising. Apply to basketball, football, tennis, badminton, running, mountaineering and so on. Type: Calf Compression Sleeve Gender: Unisex Quantity: 1 Pc, NOT 1 Pair Material: Polyester, Spandex Features: Stretch, Breathable, Footless Compression Socks Size Details [Our Size M] Length: 29cm/11.42", Upper Circumference: 26cm - 32cm/10.24" - 12.60", Bottom Circumference: 16cm - 19cm/6.30" - 7.48" (Approx.) [Our Size L] Length: 30cm/11.81", Upper Circumference: 28cm - 34cm/11.02" - 13.39", Bottom Circumference: 18cm - 21cm/7.09" - 8.27" (Approx.) [Our Size XL] Length: 31cm/12.20", Upper Circumference: 30cm - 39cm/11.81" - 15.35", Bottom Circumference: 20cm - 23cm/7.87" - 9.06" (Approx.) Notes: This item includes only one calf sleeve, if you need 1 pair, please order two. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Calf Compression Sleeve(Not 1 Pair)