Description from website. Note they recommend sizing up. I am between an XS and S. The small fit well without being tight. The only leather jacket you need. It's timeless, classic, and cool all at the same time. Made of the softest lamb leather and designed to mold to your body with wear, the Maha Leather Jacket will be a staple from day one. 100% Lamb leather, 100% Polyester lining Our leather jacket was designed to initially fit slim and snug throughout and be broken in as it wears. For a more relaxed fit or to wear over chunky sweaters, we suggest to size up. Measurements on a size Small: Shoulder Width- 15 3/8” Chest Width-18” Front Body Length: 21 Back Body Length: 19 Made in India