Notice: This scale is the size of a human body. It doesn't mean the size of a swimsuit Still not sure about size? We'd love to advise based on your measurements of bust/waist /hip and weight/height. Swimsuit has good flexibility. Size for reference only. Compare the detall with yours please allow 1-2 CM differs due to manual measurement, thanks How to measure? >Bust This is not your bra size. Wear an unpadded bra (your dress will have a bullt-in bral. Relax arm at sides. pull tape across the fullest part of the bust. >Waist Find the natural waist this is the smallest part of the waist. Ususally about 1 inch above belly button, keep tape slightly loose to allow for breathing room. >Hips Find the widest part of the hips. Usually about 7 inch below natural waist, tape should brush across both hipbones. How to select cup size? Up bust-under bust=Cup size. Cup A=10 CM, Cup B=12.5 CM, Cup C=15CM, Cup D=17.5CM, CupE=20CM