It has an open cut at the back.; 90% Polyester, 10% Elastane; Model Measurements: Height: 174cm (5'9'') Bust: 88cm (34in) Waist: 59cm (23in) Hips: 88cm (34in); The product on the model is S/ It's a size 36/8.;; Hand wash in warm, soapy water after each use. Do not use bleach or detergents. Do not leave the swimsuit left 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.