REI Co-op mummy sleeping bag provides reliable warmth for three-season camping and backpacking. This bag features a dual-tone burgundy and charcoal grey ripstop nylon shell with a contoured hood and adjustable drawstring to trap heat effectively. Designed for comfort down to 28°F and a lower limit of 17°F, it includes a full-length side zipper with an orange pull for easy access. The lightweight, compressible design makes it an excellent choice for hikers looking to balance pack weight with nighttime comfort.