3 SEASON ULTRALIGHT SLEEPING BAG. The cool weather sleeping bag is made with materials which do not retain moisture nor does it allow external moisture to sip in. This is due to polyester usage on the external and internal lining. In addition, it has hollow cotton filling, giving it a temperature rating of +10°F and +38°F.MEASUREMENTS: 68 x 27CONVENIENT: Drawstring mummy hood covers your entire head and face to keep warmVISUALLY PLEASING WITH WIDE RANGE OF COLORS. It cleverly combines function and aesthetics at the same time and for this reas