Due to a customer service mishap, I somehow ended up with two jackets (they let me keep one!). I tried it on once but it was identical. Still in original packaging. A Small (S) Waxed Trucker Jacket in Charcoal I an typically a medium but easily fit a small in this jacket, would recommend especially if you are below 5’9”. Of course, if you would prefer to layer I’d recommend sizing up! Please let me know if you need more info. It really is new so I would recommend checking out their site.