Super UL Nano Blanket Pro

New product

The Nano Blanket upgraded with a weatherproof/breathable super light shell.

Note: The new super custom Nano Blanket shown here is replacing our 40° Minimalist Vector and 40° Minimalist ARC quilts.

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Custom item.4-6 weeks lead time.


40° rating, super compact stuffed size, ultralight. Versatile, essential, inspiring. 

From Blanket to Quilt

In it's basic rendition the Nano Pro is a tapered rectangular backcountry comforter made with gossamer light fabrics and high fill power goose down.

It is as light and compact as is currently possible. All clutter has been removed. In this configuration there's no Velcro, no shockcords, no snaps. Only pure function remain: 0.66 ounce per square yard Membrane shell and liner. ¾" baffled construction. 900 FP down. 

Stepping up in features from the comforter mode gradually evolve the Nano Blanket Pro towards full quilt mode, based around the original 40° rating. Shockcord channels can be added at the foot end or top end, or both. Using specially sourced 1/16" shockcord and minimalist cord locks each channel adds about 12 grams, depending on blanket width. 

From here an up and down 24" strip of Velcro is the next addition. At 14 grams, including other UL hardware, this mod enables a convertible foot end, easily switching from fully open blanket mode to enclosed footbox.

The underbody straps many quilt owners use to control drafts complete the upgrades needed to turn the basic Nano Pro to a full Nunatak quilt. However, in a nod to SUL philosophies, these are merely comprised of 1/16" shockcord and tiny captive cordlocks. 


The Nano Blanket Pro is custom built with 8 lengths and 5 shoulder widths available in any combination. Add to this three foot end sizes. And, if these 120 sizes are not sufficient for you - just email us!!

Fabric Technology

The Nano Blanket Pro substitutes the regular shell with a super light 0.74 ounce per square yard Robic based ripstop nylon weather proof fabric to one side of this fully reversible quilt.

Face this micro-porous, waterproof/breathable shell out towards the elements to ward off mist, spray and dew in an open bivy or brief recovery stop.

Face it in towards the body to achieve a mild Vapor Barrier effect. This will keep moisture from damp sweaty clothes from migrating into the down, and will also boost the temperature rating of the Nano by a few degrees. Adventure racers and endurance bike riders will appreciate this quick and simple method of quickly resting without transferring compromising the insulation.

A second shell is the 1.4 oz/yd 10d ripstop-PTFE laminate. This Gore-tex like material offer better moisture protection and enhanced breathability compared to the Robic above. An obvious win-win situation was it not for the increased weight and bulk associated with this. Read more here regarding fabric choices. 

The 0.66 Membrane liner fabric is optimally suited for an application like this. Few, if any, materials on the market today are as light as Membrane. Being a taffeta style fabric without the bulk and weight concentrated in a ripstop grid, the overall resistance to wear is very good for such a thin material. 

Down Type

For the Nano Blanket Pro only Hyper-Dry moisture resistant down is offered. With a waterproof/breathable shell there's an increased risk of moisture condensing on the inside of the shell fabric during certain conditions. Having the added protection of treated down makes sense.

Weight and Bulk

As there are so many possible size combinations, we are only going to give an accurate real life weight of one style of Nano Blanket:

75" long times 48" wide with a 34" wide foot end is 10.9 oz, and fit inside a Nalgene bottle. Wide mouth, that is!

Based purely on calculations one of the biggest, the absolutely massive version of 95" x 66", with a 42" foot should weigh 17 oz, and the smallest, barely useable Nano Blanket (60" x 42", with a 34" foot) about 7.7 oz.

The silnylon stuff sack supplied is 11 grams.

Possible uses for Nano Blankets:

Boost-liner for old tired mummy bags.

Emergency or planned bivys.

Recovery/rest blanket for: Ultra running, FKT attempts, adventure racing.

Warm-up blanket for backcountry skiing and other winter activities.

Home or camping comforter.

Safety net for committing day hikes.

Summit day just-in-case bivy.

Backcountry trauma/shock control.

Hammock underquilt (with some user mods!)


Full fledged quilt with the appropriate options selected, such as bottom and top closures, and strap package.

Pictures below reflect a Nano Pro with optional foot end drawcord and ultralight cord lock quilt straps

Temperature Rating40°F / 5°C
Baffle height0.75"
Insulation Loft1"
Differentially cut liner/shellNo. Custom option only

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Super UL Nano Blanket Pro

Super UL Nano Blanket Pro

The Nano Blanket upgraded with a weatherproof/breathable super light shell.

Note: The new super custom Nano Blanket shown here is replacing our 40° Minimalist Vector and 40° Minimalist ARC quilts.

Product Options
Temperature Rating
Overall Length
Length of blanket lying flat with any (optional) closures undone.
If choosing any foot end closures add 5" to the length here to make up for any bunching up that occurs when drawing the foot end closed.
Shoulder Width
The width across the blanket at the top and about 3' down, with any (optional) closures undone
Foot End Width
The width across the blanket at the foot end, with any (optional) closures undone
Foot End Closure

The two upgrade options allow a smooth and quick transition from blanket style quilt to a more thermally efficient foot area. Note: When closed up, both choices shortens the quilt by 5".

Option one is a simple shockcord to gather up the end, and adds about 12 grams.

Option two is the real deal, similar to the Vector foot box on the fully featured Premium Quilts. This adds 26 grams, depending on footbox size.

Elastic Drawcord in Channel (+$15)
Drawcord/Velcro, Enabling a Fully Closed Footbox (+$50)
Top End Closure
A standard quilt style drawcord across the top hem is the option here, and adds 14 grams depending on size.
Elastic Drawcord in Channel (+$15)
Shell fabric
Two choices, both offering advanced weather protection: The 1.4 oz/yd is a laminate with qualities on par with other very well know waterproof/breathable fabrics.
The 0.74, at half the weight, offer a little less rigorous moisture protection with its micro porous PU coating.
Liner Fabric
Down Content
Hyper-Dry moisture resistant down will help combat the effects of perspiration, misting tents and damp air.
Nunatak products made with Hyper-Dry down receives 5-10% additional fill, due to a slight decrease in lofting ability
900 Fill Power Hyper-Dry Goose Down, RDS Certified
Down Overfill
Strap Package
Straps snugs the quilt around you and/or the sleeping pad. Options are: None or 2 ultralight shock cord style controllers
2 Side Mounted Under Body Straps, Ultralight Version
Gamut Climashield Over-quilt Compatability

This mod makes a future over-quilt application as effective as possible. It adds snap buttons in the places needed, plus stores a record of your product's finished measurements and attachment points.

No Thanks!
Yes, prepare my quilt for future Gamut over-quilt application!