2016 New Womens High Cut Race Training One Piece Swimsuit Top fabric :80% nylon+20% elasthanne US XS=UK(0)=Asia S fit bust 28-29 inch-----US S=UK(0-2)=Asia M fit bust 30-31 in-----US M=UK(2-5)=Asia L fit bust 32-33--------US L=UK(5-7)=Asia XL for bust 34 -35-------US XL=UK(7-9)=Asia XXL for bust 36-37 US XXL=UK(10-13)=Asia 3XL fit bust 38-39 inch------US 3XL=UK(14-15)=Asia 4XL fit bust 40-41 ince------US 4XL=UK(16-18)=Asia 5XL fit bust 42-43 ince If you according the UK size to choice, must up one size ,this in small side,especial big size, Cross back sex looking with thin strap ,perfect for swiming training ,swiming race, also good for casual swimwear This swimwear high cut thick chest fabric no need bra padded.________Comfort soft perfect for swimming race , athlete,bathing ,hot spring,spa.Promise good quality, the swimsuit weight tend to heavy.