85% Nylon, 15% Spandex. Size S/M best fits heights between 4' 11" to 5' 5",weights between 100 to 145 lbs; size M/L best fits heights between 5' 5" to 5' 11", weights between 145 to 190lbs; size large best fits heights 5' 5" to 5' 11", weights between 190 to 245lbs. Fabric provides stretch. Machine wash cold Gentle cycle. Do not bleach. Tumble dry low. Hang to dry recommended. Unlined. Sheer. Made in the United States.