It is the best you can have to keep warm when you are keeping watch in the moonlight, waiting for fox and wild boar. Also very useful if windy when hunting moose. Outside is made of soft, brushed micro, inside of fiber fur and in between a nice warming layer of insulation. Zipper on the side for easy getting in and out. Suspenders at top to keep the bag in place. Easily folding into a roll and carrying over the shoulder with a strap.