Calf fatigue対策 during sports: Heat, cold, and UV protection Calf sleeves compress the entire calf muscle in a central direction, suppressing unnecessary muscle movement and supporting performance. Set of two (for both legs) Black Brand new, unused Available in two sizes: M and L. *Please comment with your desired size when purchasing. [How to choose your size] Measure the circumference of your ankle at its thinnest point. M (Ankle circumference: 19.0-23.0cm, Calf circumference: 32.0-38.0cm) L (Ankle circumference: 22.0-25.0cm, Calf circumference: 36.0-42.0cm) Due to the size restrictions of the mail service, the outer box will be folded for shipping. Thank you for your understanding. Thank you for viewing. Please feel free to comment if you have any questions.