HASIDING Women's Pro Athletic One Piece Bathing Suit(FBA Clearance) 80% nylon+20% elasthanne Slight open-back U-neck front guarantees privacy Running water print, bright and dynamic A very stretch material, provides a body hugging fit, great shape retention US(0-1) suitable for bust 30-31"/under bust 26-27";US(1-3) suitable for bust 32-33"/under bust 28";US(3-7) suitable for bust 34-35"/under bust 29-30";US(7-10) suitable for bust 36-37"/under bust 31-32";US(10-13) suitable for bust 38-39"/under bust 33"