Sizes are based on Double RL men’s sizes. For customers who typically wear women’s apparel, we recommend ordering one size down from their usual size. Size medium has a 29.75" back body length, an 18.75" shoulder, a 44" chest, and a 34.75" sleeve length. Sleeve length is taken from the center back of the neck and changes 1" between sizes. Point collar. Buttoned placket. Long sleeves with buttoned barrel cuffs. Two chest buttoned pocket