At just 1 lb 3 oz., the SummerLite is the lightest bag we make in a continuous baffle construction. Our goal in designing this bag was to make it as light as possible without eliminating key features or function. The result is a fully-baffled bag that weighs only 19 ounces and features a full-length zipper with insulated draft protection! The SummerLite is a dream come true for lightweight backpacking fanatics. Filled with 850+ Fill Power ethically-sourced premium goose down. Continuous baffles allow you to shift down for more insulation in colder weather. Full-length #5 YKK zipper provides a smooth, easy unzipping experience while saving weight. Insulated Draft Tube blocks cold air and keeps the torso better insulated. Breathable 12 denier ripstop nylon outer shell makes bag ultralight yet durable. Minimal design keeps bag as light as possible without eliminating key insulation features. Comes with ultralight stuff sack and breathable mesh storage bag.