SULO Expert

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A minimalist, high performance quilt for the experienced user 

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Luxury third! The SULO is pure warmth to weight efficiency for the experienced hiker who prioritizes performance over do-it-all versatility.

A hybrid between a quilt and a bag, the SULO's mummy shaped leg/foot section is closed from the bottom up to near butt level, with the much shorter open underside controlled by our draft fighting ETC. Together with an aggressively shaped, body hugging differential cut and the proven Nunatak down tech of narrow tapered vertical baffles properly filled, the SULO is efficient, light and simple to use, yet as light as they come.

At a true shoulder width of 52" the SULO is similar in girth to a size 'regular' from other brands, and good up to about 48" shoulder circumference. This size range (~52") is a poor choice for beginners getting their first quilt. The SULO is aimed at weight conscious experts not needing excessive features and who understand quilts and their cons.

The length recommendations outlined in the charts results in a neck to chin high fit. The use of additional head insulation is needed.


10d DWR shell and liner

Body shaped differential cut 

42 top - 52 shoulder - 48 hips - 40" foot

Long closed leg/foot section


Neck drawcord

Single under-body strap, optional

Narrow tapered and curved baffles

Generous down fill

Want to read about the difference between the SULO and the Arc UL?  Go Here

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SULO Expert

SULO Expert

A minimalist, high performance quilt for the experienced user 

Product Options
Temperature Rating

The rating reflects the lowest temperature during which a well conditioned hiker can expect to remain comfortable throughout a full night. Adequate shelter and ground pad must be used.

30°F / 0°C. Includes differential cut
Inside Length
70" - Medium
Overall Width
Footbox Size Circumference
Outer Shell Fabric
Black 10d Ripstop
Liner Material Options
Black 10d 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.

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. For most quilts/bags the overfill amount ranges from 45-65 grams of extra down

No Thanks
Overfill evenly throughout
Edge Tension Control

This design involves two user adjustable shock cords running lengthwise along the left and right quilt edges. On cold nights tension the cords to shorten the edges and draw them under you; during milder conditions completely slacken the cords to have the blanket throw feel. 

Stuff Sack
Yes, please include a stuff sack
No stuff sack