Fulfilling the trifecta of requirements for your next 3-season sleeping bag, The North Face Aleutian 3S sleeping bag is warm, small when stuffed, and inexpensive. This mummy bag, filled with Heatseeker insulation, uses overlapping construction to eliminate cold spots. Features a silky, breathable polyester interior and exterior that hold up to wear and tear in the wilderness. Soft ripstop nylon shell. Internal watch pocket. Roll-top stuffsack.