Experience the great outdoors in comfort with the ALPS Mountaineering Camper Flannel Outfitter 45 Degree Synthetic Sleeping Bag. Perfect for three-season camping, this sleeping bag's soft, 100% cotton flannel liner and TechLoft Silver insulation provide optimal warmth in temperatures as low as 45 degrees F. It's built to last with a 210T nylon ripstop outer fabric and sturdy 2-layer construction. The #10 zipper on the right side makes it easy to slip in and out of, and when it's time to pack up, it conveniently fits into the included stuff sack. This sleeping bag even embraces sustainability with the use of recycled or repurposed materials. Trust in a lifetime manufacturer warranty and prepare for many cozy nights under the stars.