The Apache Supers are built with attitude! They won't take no for an answer as they willingly push the bounds of a 3-season bag. They have a full 3-Dimensionally sewn down filled collar to seal in heat when your 2-season trip turns a little bitter! The efficient cut lets you heat the bag quickly and gives you a lighter parcel to carry about. 19 oz. of high lofting down pumps up a durable 6" of loft. The baffles are continuous to provide unmatched versatility. The MicroFiber shell is very weather resistant while remaining extremely breathable. At a total weight of 2 lbs. 6 oz. you'll be amazed just how much cold these bags will tame.