Keep warm at camp with the Blaze 20°F Sleeping Bag. It's stuffed with warming TechLoft Silver insulation that features various staple-length fibers and a siliconized finish for maximum loft and warmth-trapping power. The Blaze uses a two-layer offset construction, plus zipper baffle that keeps the warmth in and the cold out. Its streamlined mummy shape makes for easy packing inside the included stuff sack. Constructed with a durable, polyester ripstop shell and soft polyester liner.