60% Polyester, 11% Cotton, 10% Acrylic, 10% Nylon, 9% Polyurethane -4-way Stretch fabric; Machine wash warm with like colors. Line dry in shade, do not tumble dry. Do not bleach. Do not iron. Do not dry clean. Non-restricting toe box allows for increased functionality and movement. Supports the calf muscle and ankle, gradual compression aids in circulation and recovery Stabilizes and supports the arch of the foot reducing fatigue Thailand