I wear a size large in most things including leather jackets.

According to the Amazon sizing chart for this jacket my size measured 42" chest, 36" Waiste is on the low side of Large. However this jacket Large was clearly cut for a 38" chest. When I put it on the shoulders were and inch too narrow and around the chest I had no room too move, bareley able to bring the top button to the button hole while stretching the leather.

Maybe if you've never visited a gym in your life, this Large might fit a stick man 38, 36, 36. But if like me you have a strong shoulders and a broad chest you had better add 2" to your size and get the next size up from your usual.

To be sure: Measure your chest, I am a solid 42" chest and this Large was too small. Sent it back in exchange for the X-Large.