Stuffed with synthetic Heatseeker Eco insulation, The North Face Aleutian Sleeping Bag is surprisingly light, even compared to most down bags. For you, that means you can backpack in warmer weather and still keep your load as light as possible. Heatseeker Eco is highly compressible, extremely durable, utilizes 30% post consumer recycled material, and offers an excellent warmth to weight ratio that can keep you comfy throughout the summer nights, even when wet. The Aleutian's comfort mummy cut gives you a roomier feeling than most mummy bags, and both the hood and draft collar help retain all its warmth for the cooler weather in summer. The bag features a wraparound footbox zipper to open the bag completely so you can use it like a blanket.