Experience the ultimate versatility with Sea to Summit's Ascent Down Sleeping Bag. When facing colder temperatures, simply adjust the technical hood, zip up the draft-tube protected zippers, and let the 750 Ultra-Dry Goose Down keep you cozy. In warmer conditions, take advantage of the Free-Flow Zip system to unzip in various configurations for optimal ventilation or even open it up flat and use it as a quilt on those extra warm nights. This three-season backcountry bag is one of the few on the market, making it a must-have for all your hardcore adventures. And, for those downtime moments at camp, just snap the shoulders and unzip the footbox to wear the Ascent as a cozy jacket. Don't let your adventures be hard all the time - let the Ascent make them a little easier.