Had returned my Interstellar jacket for this one (customer service was great), because I feel it's a better fit and has more pockets and zippers. So pretty much what I needed. It's looser, which is great for layering up in the mountains of Alaska. I like not being worried if I can squeeze in another jacket underneath if need be. The zippers are great! Pit zips are a necessity when I purchase a jacket. Great for ski touring on a warmer day! I'm 5"1' and 135 lbs and ordered a M because I like things to have a bigger fit. Works perfect for me!