Required a jacket that I could use in a variety of situations and came across the interstellar jacket. I opted for this as it was well reviewed and I wanted to try something different than the Goretex as I already own a winter shell in that material. A few things I noticed immediately was how light weight the jacket is compared to other I have tried, it was very breathable and comfortable. I didn't need to start feeling hot for it to breath also it feels very comfortable, no garbage bag feel to this shell. Layers well and packs down into its own pocket! For the size, I'm a fairly big guy and was unsure how the trim fit would fit. I am 6' and around 270 pounds with a reasonably athletic build and the XXL fits perfectly with enough room for me to add an insulation layer. I tried a standard fit in the foray jacket and feel that the xl was best fit. I suggest a size up. Great Jacket 5 star!