The Marmot Sawtooth Sleeping Bag is an outstanding all-around bag for outdoor enthusiasts who avoid winter cold. The Sawtooth is filled with 600 fill goose down for a great warmth to weight ratio. A stretch tricot baffles provides the Sawtooth with ultimate strength, durability and bag life. The X-static draft tube eliminates drafts more efficiently. The Nautilus 6-baffle hood of the Sawtooth provides 6 chambers of down around head for better down control and fit, and the hood cord is positioned for easy access. The classic trapezoidal foot box of this Marmot sleeping bag gives more foot room, and ground-level side seams eliminates drafts. Two hang loops on the outside of the Marmot Sawtooth Sleeping Bag's foot box give you a place to air out your bag. Two-way zipper sliders allow you to vent and mate bags. Locking zippers keep this Marmot Sleeping bag from opening up in the middle of the night. Zipper guards help repel biting zipper coils. Feely draw cords ease night time cord fumbling, so you'll never struggle getting in and out of the Sawtooth. And a stash pocket gives you a place for storing night time essentials such as a watch or energy bar. The Marmot Sawtooth Sleeping Bag is a great spring/summer backpacking bag, Nepal trekking, or general traveling bag.