These  bags are built with quality and comfort in mind.  Big River Outdoors uses 2 layer offset quilting construction, ultra durable water resistant canvas shells, and super cozy flannel liners.  These bags include two way zippers, so you can zip two bags together, adjustable mummy style hood, a massive shoulder, and zipper baffles.  This bag is extremely spacious at 95" X 40" X 40", complete with two custom compression straps and a stuff sack for simple transport.