Just got my new kifaru slick bag 20 degree regular length today. My initial impression is the foot box that is advertised as being so big really isnt much larger than a standard bag, just squared off. The cut of the bag also isn't much larger than my down bag. Being a smaller guy 5-7 150 I was worried about the cut of the bag being to large and my body having to heat the space. Overall construction looks awesome as with any kifaru product. After crawling in the bag seems very comfortable the flat and round draw strings are very easy to operate, the hood cinches down very tight around you. The bag compresses down nearly as small as my down bag. Overall initial impression is outstanding. I also ordered the 5 string medium compression sack. Which fit the slick, my Neo air and ti-goat bivy. Wow love that compression bag.