The back has a regular fit. It has a throw line, it can be removed.; 91% Polyamide, 8% Shimmer, 1% Elastane; Model Measurements: Height: 174cm(5'9'') Bust: 88cm(34in) Waist: 59cm(23in) Hips. : 88cm(34in); The product on the model is size S/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.