Enjoy the slightly wider cut of the Mountain Hardwear Lamina Z Bonfire Mummy Sleeping Bag on your next winter outing. Zoned insulation provides maximum comfort while saving weight. Slightly wider, winter mummy cut. Proprietary, welded Lamina construction enhances loft and eliminates cold spots. Zoned insulation maximizes warmth where it's needed most. Thermal Q insulation has outstanding compressibility and maintains excellent loft. Ergonomic draft collar blocks the escape of heated air from inside the bag. Full length 8 zipper with double sliders for versatile ventilation. Comfort footbox follows natural foot position for maximum warmth and comfort. Face gasket and tailored hood comfortably block drafts at the hood opening and seal in warmth. Durable, lightweight nylon shell with DWR treatment repels water. Soft polyester lining wicks away moisture. Zippered pocket at shoulder for storage. Nylon compression stuff sack and mesh storage bag included.