It has an open cut at the back.; The product is lined with underwire in a throw, which is removable.; 100% Polyamide; Model Measurements: Height: 176cm(5'9'') Bust: 86cm(33in) Waist: 58cm(22in) Hips: 89cm(35in); On the model. The product on it is size S/36/8.;; After each use, hand wash in warm, soapy water. Do not use bleach or detergents. Do not leave your swimsuit waiting in a wet, stuffy, closed, plastic bag. Lay it upside down and dry it in the shade. Fluorescent colors will fade in the sun, chlorinated water and sun oil will ruin your swimsuit.