PZZ Women's Sexy Backless One Piece Swimsuit Halter Hollow Out Swimwear Bikini Suit(FBA) Please follow our size chart to choose the right size Please allow 1-2cm deviations due to manual measurement. Fast Ship(FBA):Fulfilled by Amazon with two-day Shipping (Ship from USA) Waist inelastic,Diamond prevail in kind Material: 85% Nylon 15% Spandex