40° Nano Half Quilt

New product

A super light half bag / quilt hybrid creating a unique sleep system when used with our Kobuk UL, NOT included here!

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Custom item. Multi week lead time.

An ultralight quilt of a mere 8oz?

An ultra runner or adventure racer's dream come true? 

This ¾ length chest high Nano Half Quilt is not a stand alone product, but is designed to pair with our Kobuk Hoodie. Together they create a uniquely versatile sleep system for the experienced backcountry traveler. 

The ease of use designed into this system is paramount while stressed and tired. 

Arriving at a recovery stop the jacket goes on immediately while managing chores. The quilt is donned when ready. An optional sitting position allows for refueling and nutrition tasks while still completely covered. A smooth transition to complete rest is easily accomplished.

The stock combo of Arc Half Quilt and Kobuk Hoodie is comfortable at 30°F. Still very adaptable down to the mid twenties; however at this point the cold could start to find its way in. At 20°F it’s better to keep the stops brief and bank on calories and left over warmth to recover. In the frigid realm below 20°F you will certainly live on to tell, but consider this setup emergency equipment only.

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40° Nano Half Quilt

40° Nano Half Quilt

A super light half bag / quilt hybrid creating a unique sleep system when used with our Kobuk UL, NOT included here!

Product Options
Overall Width
Shell Fabric

Typically listed from lightest to most durable. Please go to the Fabric Page for help choosing the shell material.

Liner Fabric
10d Black Taffeta - Lightest, most breathable
Down Type
Choosing Hyper-Dry moisture resistant down will help combat the effects of perspiration, misting tents and damp air. Nunatak products made with Hyper-Dry down will have a slight increase in bulk over those made with regular down. A 5% increase in fill weight also occur.
900 Fill Power Goose Down, RDS Certified
900 Fill Power Goose Down, Hyper-Dry, RDS Certified
Top Cinch Cord
Under-body Strap System
Down Overfill
Adding overfill can prolong the life of the down, help maintain loft during moist conditions, boost the temperature rating by a small amount and keep the down volume from shifting. Expect a weight increase ranging from one to six ounces depending on the product, the size and the rating.
Stuff Sack
Our stuff sacks are pretty dope, but current weight saving trends in ultralight circles eschews this once crucial item. So, opt out and save $ while also being very current.