I love this jacket, I read in another review that this jacket runs a bit small, and it definitely does. I usually wear an X-Large t-shirt which fits me quite comfortably, and I decided to buy this jacket in XXL and it's even a bit snug, but not too tight.  Honestly though, no joke, if you wear this jacket in public, both young and old will compliment, and even ask where you got it, because according to a few people (mainly older people) this is a very hard jacket to find, but I would assume that is probably because they don't really do any internet shopping. Overall, great jacket.