When trying to decide between two sizes, choose the larger size for a better fit.

Size Chest Hips Neck Sleeve
Small 38-40" 38-40" 15-15.5" 33-34"
Medium 42-44" 42-44" 15-15.5" 33-34"
Large 46-48" 46-48" 17-17.5" 36-37"