Spanx Hide & Sleek Shaping Camisole 90% polyester Soft cool Fabric Offers Double Layer Compression Slims the Midriff Area Below the Bra Line Down Neatly Tucks into Garmets Without Bulk Slick Yarns Will Not Cling to Clothing Surged Edges Lay Flat for a Smooth Appearance 79% Polyester 21% Spandex - chest area: 90% Polyester 10% spandex