The North Face Aleutian 20/-7 is a two-season synthetic mummy sleeping bag designed to keep you warm on spring and autumn nights, with a comfort temperature of -1 °C. Its narrow profile helps trap heat close to the body, making cooler evenings more comfortable without piling on extra layers.
Filled with resilient polyester, this bag maintains loft even if moisture creeps in, and the durable polyester shell stands up to regular use. The tapered mummy shape cuts down on cold spots, and you can choose between regular or long lengths for a snug fit—an important factor in ensuring consistent warmth throughout the night.