This down jacket replaced a very nice Mountain Hardware down jacket that I loved, but the sleeves were a little too short. The Zeus' sleeves, however, are plenty long. I am 5'9" 160lbs. and a medium fits loosely, but doesn't look like I'm swimming in it. The only thing I wish it had was fleece lined pockets and collar like the Mountain Hardware jacket, but you can't always get what you want. Overall, a nice replacement though. I've taken it xc skiing, downhill skiing and even on some Iowa winter bike rides and have been very pleased with its warmth and durability. And, of course, top notch service from Backcountry.com. Gotta love 'em!