125 lbs 5’5 34 b wears a small If you have bigger bra size , but pants 2-4 , I would suggest size m , since the bottom is adjustable Suggestion: s-0-2 m:4-6 L8-10 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.