THREE BUTTON Mens BROWN PREMIUM BUFFALO Leather COAT Jacket Sizes 42-52 Measure around your chest under your arms at the widest part of your chest with arms by your side. Add 2 inches to the chest measurement and buy that size.If the chest measures 46 inches than buy 48. The buttery soft feel of this Coat will make you look and feel like a million bucks. This leather jacket was designed with two goals in mind style and comfort. Men's Three Button Leather Blazer with two front pockets. Great for both casual and formal wear.