Some customers have written good reviews on down sleeping bag products from Marmot. Marmot has many products of sleeping bag. One of them is Marmot Sawtooth. This sleeping bag is lighter and durable. It uses nylon as the main material. This product is also water resistant. Another product that can be chosen to equip your hiking experience is Marmot Helium. This kind of sleeping bag is not only compact and light, but also has impressive insulation system. It is supported with zipper to allow you get easy access as well as add ventilation. The footbox is designed to increase the warmth while sleeping.