Whether you like to head ultralight into the backcountry or just want a lightweight synthetic sleeping bag, the new Mountain Hardwear Ultralamina 32 is your best bet. Not only is this sleeping bag lightweight, but it compresses to a mere 6.5 inches by 12 inches. Mountain Hardwear reduced the weight on this bag by welding its proprietary Thermic Micro insulation directly to the shell, which eliminates the need for baffles. Having no baffles also helps the durable and extremely compressible synthetic insulation stand up to repeated stuffing and washing. Partial zippers on both sides of the sleeping bag also reduce ounces. The DWR-coated Ultralamina 32 stays warm even when its wet, which a down bag doesnt.