The SubAlpinist Mummy Sleeping Bag was co-designed with our friends from the North Cascades Smoke Jumper Base, who were searching for the lightest, most compact sleeping option for their jump kit. The minimal packed size pared with the full protection of the SubAlpinist meets their stringent requirements.

This concept takes full advantage of our approach for lightweight hiking gear: Adequate Minimalism. You will find none of the extraneous clutter that often weighs down top-of-the-line products. The fit is very trim to cut down on the amount of fabric being used, and maximize heat gain from body core radiation.

On the SubAlpinist Sleeping Bag we install Nunatak's unique 21" center zipper. This location gives you full use of both arms while still having head and back in the sleeping bag, a must while performing camp tasks in foul weather. The center zip also provides more effective torso ventilation, while allowing for easy exit and entry.