If value is your game, look no further than the Slumberjack Forest 0 Degree Rectangular sleeping bag. Constructed with extra Slumberloft? insulation for warmth, and durably constructed to last, the Forest 0 Degree is a great choice for your cold-weather adventures.Slumberloft? synthetic insulation. Polyester taffeta shell and lining. Durable construction ensures stable insulation over time. Anti-snag zipper protection. Draft tube along zipper keeps out cold air and prevents heat loss. Zip-together feature allows two same-size rectangular bags to be joined, making a double-wide bag for two. Double offset construction Stuff sack included. Regular right zip only.