Back to Nunatak Sleeping Bags

A backcountry quilt for all seasons, the Arc Alpinist is roomy enough for high mountain layering, yet the unique adjustability of the Arc Concept will easily adapt to the heat of summer.

To achieve this versatility our Arc bags are constructed without zipper closures, but features an open underside outfitted with two lengths of ultralight webbing which seals the quilt around you and any sleeping pad. Tiny 3/4" center release buckles adjust the girth for the right fit.

The temperature rating of 20 degrees Fahrenheit is perfect for the individual wishing for an all round bag. The loft is 2.5" of baffled construction, generously filled with the highest quality 800+ down.

The Arc concept is hoodless saving weight. However the roomy cut on the Arc Alpinist enables you to curl up inside on nippy nights. These bags are designed to make use of the many layers of additional headwear one usually has along in the mountains.alternately, try one of our Down Balaclavas for colder environs.

  20° F
-7 °C
Fits to height 5'4" 5'10' 6'4"
Useable width:




fill weight 11oz 12oz 13oz
total weight,
quantum. 8
18oz 20oz 22oz
total weight,
Quantum 1.0
19oz 21oz 23oz
Total weight,
epic by nextec.
21oz 23oz 25oz
stuffed size 7x10 7x11 7x12
baffle height 2.5" 2.5" 2.5"
price $438 $469 $509

Go here for more information about this backcountry quilt and Nunatak's Arc Concept.

To learn more about our down sleeping bags in general, read this

To help you decide which shell fabric will work best for you, see here

This page is about care, maintenance and storage of down equipment.

Nunatak is dedicated to custom design and manufacture of quality back country sleeping bags and garments
utilizing 800+ goose down and sophisticated fabrics.

home | sleep systems | garments | down booties | order | clearance | fabrics | accolades | links | contact us | blog
webdesign by