With bra integrated sexy ultra-thin transparent hollow body shaping coat female lace underwear women bodysuit Find your fit Give you best answer HOW TO MEASURE Step1:Measure your upper bust Step2:Measure your under bust SIZE CHART (EU/UK SIZE)       1 inch = 2.54 cm Difference Cup=A-B A cup B cup C cup D cup E cup 7.5-10CM 10-12.5CM 12.5-15CM 15-17.5CM 17.5-20CM 2.8-3.9inch 3.8-4.9inch 4.8-5.9inch 5.9-6.9inch 6.9-7.9inch CUP/SIZE A Upper bust(cm) BUnder bust(cm) Waist(cm) Hip(cm) 70A 32A 75-80CM 29.5-31.5(inch) 65-70CM 25.6-27.6(inch) 60-70CM 23.6-27.6(inch) 75-85CM 29.5-33.5(inch) 70B 32B 77-82CM 30.3-32.3(inch) 75A 34A 80-85CM 31.5-33.5(inch) 70-75CM 27.6-29.5(inch) 65-75CM 25.6-29.5(inch) 80-90CM 31.5-35.4(inch) 75B 34B 82-87CM 32.3-34.3(inch) 75C 34C 85-90CM 31.5-35.4(inch) 80A 36A 85-90CM 31.5-35.4(inch) 75-80CM 29.5-31.5(inch) 70-80CM 27.6-31.5(inch) 85-95CM 33.5-37.4(inch) 80B 36B 87-92CM 34.3-36.3(inch) 80C 36C 90-95CM 35.4-37.4(inch) 85B 38B 92-97CM 36.3-38.2(inch) 80-85CM 31.5-33.5(inch) 75-85CM 29.5-33.5(inch) 90-100CM 35.4-39.4(inch) 85C 38C 95-100CM 37.4-39.4(inch) Example upper bust:85cm , under bust:73cm , cup size:upper-under(85cm-73cm=12cm) , 12cm is B cup,under  bust(73cm) is 75 size. answer:your bra size is 75/34B