The convertible Pup Sack can be used as a sleeping bag or a dog pad, providing ultimate versatility on your next outdoor adventure. When the sack is fully zipped, your dog will stay warm and comfortable thanks to the sack's heat-retaining thermal foil lining, insulated filling, and roomy design to accommodate his natural sleeping position. Simply unzip the bag for an on-the-go sleep pad; you can even stake it to the ground using four built-in loops. This washable, compressible travel bed comes with a ventilated mesh stuff sack for easy storage.