Ferrino Lightec 700SQ Sleeping Bag, Blue 100% Polyester Imported Lightweight sleeping bag, with an excellent weight/size/cold protection ratio. Compresses into a very small volume when travelling size counts. Rectangular style bag with H.T.F.insulation. 2-way zippers and zippers that allow for 2 bags to be attached "One touch" system to open or close the hood from inside, with just one hand Inner and outer layers separated for maximum heat efficiency.