Bauerfeind Sports Compression Lower Leg Calf Sleeves (1 Pair) - Gradient Compression Improved Blood Circulation in Legs - Air Knit Fabric Breathable, Durable, Washable SUPPORTS THE CALF MUSCLES: The Sports Compression Calf Sleeves support the muscles in the lower legs through powerful compression. The compressive effect decreases from ankle to calf. The muscles receive a better supply of oxygen, for optimal performance. STIMULATES CIRCULATION: Stimulating blood circulation also causes the lower leg / calf muscles to quickly heat up, which helps protect against injury. The sleeves promote circulation in the legs and the muscles receive a better supply of oxygen, continue to perform more effectively and regenerate faster yet the skin remains cool and comfortable. COMFORT AND EASY CARE: The sleeves, which come in a sporty design, are sold as a pair and are durable, breathable and fit perfectly thanks to their extra wide edging band. Machine washable (see product packaging for details). The calf sleeves are designed to improve blood-flow for sports such as running, basketball, football, baseball, cycling & more! FIT AND SIZING: To determine size, measure the circumference above the ankle bone and the circumference at the widest part of the calf. To determine length, measure the lower leg from the ankle up to the hollow of the knee. Refer to the sizing chart in the product images for a size to associate with this measurement. 100% SATISFACTION GUARANTEED: With proper use and care, our products are designed to last. We stand behind everything we sell. If you are not satisfied with your purchase, you can return it for a replacement or refund within 30 days of purchase. MADE IN GERMANY with the highest quality standards.