56% Cotton, 37% polyester, 4% Nylon, 3% Spandex. Size S/M best fits heights between 4' 10" to 5' 6", weights between 90 to 135lbs. Size M/L best fits heights between 5' 4" to 6' 0", weights between 130 to 175lbs. Fabric provides stretch. Machine wash warm inside washbag with like colors. Do not bleach. Tumbled dry low. Do not iron. Unlined. Imported.