Small measures approx 18" across from underarm to underarm and approximately 26" in length from shoulder to hem.

Medium measures approx 20" across from underarm to underarm and approximately 28" in length from shoulder to hem

Large measures approx 22" across from underarm to underarm and approximately 29" in length from shoulder to hem

XL measures approx 24" across from underarm to underarm and approximately 31" in length from shoulder to hem

2XL measures approx26" across from underarm to underarm and approximately 32" in length from shoulder to hem