I just got the jacket in the mail, and it's really nice, everything I was hoping for, was planning to wear it over a baselayer for winter MTB'ing, but holy jeez it is tight! I got an XL, I'm 6 foot, 200lbs, and usually wear Large tops/jackets. XL is like if I put a Medium on of most other garments. Unsure what to do! I'm not talking "slim fitting", I'm talking like I can barely get my puny arms in it, too. But nice jacket!