Packs down just a tad smaller than the Cerium LT I also own. Noticeable difference in warmth but still toasty once you get moving. Great Jacket, would purchase again!

First use was a week in Iceland where temps were 30-40, kept me nice and toasty. I did have a feather pop through on the arm and when trying to pull it out it seemed to be never-ending. Hopefully this will not continue.

This is my first down jacket and I love it. I am a big guy 6' 275lbs and went with the XXL and the fit is very good, there enough room for layers. The jacket is a little shorter than what I am used to but that doesn't pose a problem to me. This is extremely light and packs down very small. My first use was in Indianapolis in 11 degree temps walking 7 blocks to the Colts stadium with just a tee shirt on and I could have stayed outside for hours. This will keep me very warm living in the Poconos.

I wore this over my baselayer and then a shell on top and I was toasty while snowboarding in the mid 20"s. I have a ton of Mountain Hardwear gear and have never had a problem with any of it. Overall a good thin layer that wicks well. I will probably buy the same in another color.