5’5 125lbs 34 B wears M runs a little small If you are in between two sizes , I suggest to choose the bigger one Check the size chart below . It’s very helpful SMALL: bust: 32 -34 “A-B Waist : 24-26” Hip: 34-36” MEDIUM : Bust : 34-36. “ B-C Waist :26-28 “ Hip:36-38. “ LARGE Bust: 36-38. “C-DE Waist :28-30” Hip: 38-40”