Updated for 2015, the Classic Down series offer warmth, compressibility and the Big Agnes System bag design. The Storm King combines a roomier contour shape with a narrower pad sleeve to provide an overall more comfortable and cozier sleeping experience than ever before. We've also redesigned the bag to be taller across the top so you can roll over more freely (side sleepers rejoice!). The ergonomic hood gives you more range of motion so that you can move unrestricted while staying hooded. Oh yes, Big Agnes truly is the mother of comfort.