85% Microfiber Nylon, 15% Spandex. Size S/M best fits heights between 4'11" and 5'5", weights between 100 lbs and 145 lbs. Size M/L best fits heights between 5'5" and 5'11", weights between 145 lbs and 190 lbs. Size XL best fits heights between 5'5" and 5'11", weights between 190 lbs and 245 lbs. Fabric provides stretch. Machine wash cold on gentle cycle. Do not bleach. Sheer. Made in the United States.