I'm 1.81 (5'11) tall and about 61kg (136lb). I bought a small one and it feels like it was tailor made for me. I had one of these when I used to be a ramp agent at an airport. I wore it in freezing temps and beat the hell out of it when carrying hundreds of heavy suitcases, garbage cans, equipment, etc. The quality is top tier- hands down the best jacket I've ever had in my life. The one flaw this jacket has is the zipper. It's unorthodox in a bad way, but once you get used to it, it isn't a problem.
Rating: [5 of 5 Stars!]