Button closure
You could measure your bust by this ways: Only wear a shirt, pull tape across the fullest part of the bust, so you could get your bust size.For example, if your bust is about 38, so you could choose size US10 below,
US4: Bust- 33.5". US6: Bust- 35". US8: Bust- 36.5". US10: Bust- 38". US12: Bust- 39.5". US14: Bust- 41". US16: Bust- 42". US18: Bust- 43".95% Polyester 5% ElastaneFront Crossover Fastening, Slant Flaps Pockets, Golden Button Detail