Waist Trimmer Weight Loss Belt Workout Sport Hot Sweat Shaper Tummy Slimming Corset 90% polyester Please choose it from our Size Chart located on the left of the product image.If you actual size is between two size,we suggest you choose the Big size Condition:Brand And High Quality;Material:Material:90% Polyester and 10% Spandex. It takes 3-7 days from KY by USPS shipping service. Promotes weight loss by preserving body heat and stimulating water loss during exercise. Special material increases body temperature and absorbs sweat so you're always dry on the outside.