Photon Wire is the perfect sleeping bag for those who want to stay warm and comfortable in the outdoors. Featuring a lightweight design and 800-fill goose down insulation, Photon Wire is sure to keep you cozy and insulated even in the coldest temperatures. Its unique baffle construction and contoured hood provide maximum warmth and comfort, while its lightweight, compressible design make it easy to pack and carry. Photon Wire is the perfect sleeping bag for any outdoor adventure.