i'm 5'10 or 11 and about 165-175 and large fits great. i have large pants so i didn't want a really baggy jacket, and this is like a perfect loose fit and good arm length. the inside liner jacket though is smaller but i guess that's how it's supposed to be. the liner is super nice though and fits like a casual jacket i guess.
Im 5'9" and I wear a medium baggy fit. Fits perfect on me, not too long, right ammount of baggage. I love mine except for no wrist gaitors and the inner liner is kind of a pain to re-attach in the sleeves, but no big deal.
i'm 5'9'' and my medium evo fits really big. I love it on the hill, its great for skiing, but off the slopes i feel kinda goofy sometimes. But its a sick jacket, and i love it.