The North Face Aleutian 20-Degree Synthetic Sleeping Bag is ideal for 3-season campers on a budget. Its Heatshield synthetic insulation has different sized hollow-core fibers that compress easily for smaller packing and provide more loft. The Aleutian resists compression breakdown by securing the hollow-core fiber insulation so it doesn't move around between the shell and liner increasing the life-span of this sleeping bag so this minor investment will pay off in the long run. Easy-grab zipper pulls and no-snag zippers make getting in and out easy. The external zippered chest pocket is just big enough for your watch and chapstick. The North Face Aleutian is the warmest, most durable TNF mummy bag at this awesome price.