Polyester (Polyester). Smooth fabric, stretchy, skin-friendly, durable, easy and comfortable to wear. Whether with steel drag: with chest pad without steel support Stylish Cut 2 Piece Swimsuit featuring a backless bikini top with neck and back ties and a removable padded bra provides great support and enhances your figure, making you fit, super stylish and cute. The String Bikini Women's Swimsuit features a triangle bikini bottom for added glamour. Vibrant colors that are eye-catching and will make you look great at the beach, pool, Hawaii, honeymoon and more. This is a US size, please see the size chart in the section for details. A gift for your lover, friend or yourself. size: S: Bust: 78-88cm, Lower Bust: 72cm, Waist: 68-74cm, Hips: 78-94cm M: Bust: 80-92cm, Lower Bust: 76cm, Waist: 74-78cm, Hips: 82-98cm L: Bust: 84-96cm, Lower Bust: 80cm, Waist: 78-82cm, Hips: 86-102cm XL: Bust: 88-100cm, Lower Bust: 84cm, Waist: 82-86cm, Hips: 90-106cm 1. The unit of the number is cm (centimeter). 2 The marked size is the customer's wearing size range. 3. The size is measured by hand, and the error of 1-3cm is normal.