HASIDING Retro 50s Pin Up Halter Monokinis One Piece Swimsuit 80% nylon+20% elasthanne It is a very pin-up sexy look Adjustable halter neck The chevron stripe enhances the waist The bra top is also nicely padded and very supportive US(0) suitable for bust 28-29"/under bust 23-24";US(0-1) suitable for bust 30-31"/under bust 25-26";US(1-3) suitable for bust 32-33"/under bust 27";US(3-6) suitable for bust 34-35"/under bust 28-29";US(6-9) suitable for bust 36-37"/under bust 30-31"