Simpler, minimally featured quilt for less money, capable of striking an excellent balance of weight and bulk against durability and lasting performance. From 30° down to 5°.
Premium 850 fill power goose down in regular and Hyper-Dry.
This product is no longer in stock
Custom item. Multi week lead time.
Here is a modern backcountry quilt with an excellent balance of weight and bulk against durability and lasting performance. The ever popular 20° rating provides the most versatile setup for all-round use in the summer mountains.
In short the Arc Element is the simpler featured, slightly heavier cousin to the premium Arc UL, providing solid performance at a lower cost. This is made feasible via a less complex top closure; fewer sizing and custom options; and materials that are not of the expensive super-ultralight variety.
The Element has down rated at 850 FP. While significantly less rare to obtain than the 900fp variety in the rest of the Nunatak line, this level is nonetheless a viable option for ultralight equipment. A few years back 850 fill was the bomb diggity!
There's a choice between regular pure 850 and Hyper-Dry 850. The latter is treated to withstand moderate levels of moisture infiltration. The drawbacks are a slightly bulkier finished quilt and higher cost. The weight is comparable to regular down.
All Nunatak down is responsibly sourced and ethically harvested. The 'Organic' label of the feather industry.
Shell and Liner Fabric
The shell and liner fabrics of the Arc Element series is in the venerable 1.0 ounce per yard range. Still very light, these 20d choices have a considerable advantage over the extreme ultralight materials in long term durability and immediate tear strength.
Our silky smooth 1.0 nylon taffeta is specifically made as a sleeping bag liner. It has high breathability and feels comfortable against bare skin with its semi-matte sheen. This fabric alone is the reason to consider the Arc Element!
A six step measure of the inside useful length in 4" increments is complementing the subjective Small to X-Long moniker.
Using this system you can choose how much coverage the quilt provides when lying on your back. Reaching just the chin level is the absolute shortest anyone should go, and then only if you're a warm sleeper. Forehead level is the best compromise of low weight - efficient coverage.
As always, it is prudent to size up if in doubt. If just a little too short one tends to compress the foot area insulation to the detriment of cold feet.
The stock 53" shoulder width of the Arc Element is adequate for most users. Even side sleepers will find it easy to tuck and seal out drafts. All our measurements are taken with the quilt filled and un-stretched. Always true and real life coverage numbers.
Foot End Design
The Arc Element sports the traditional Arc permanently closed footbox. This is a fully formed, roomy compartment with a sewn-in-place oval bottom. The closed foot section is 24"-28" long. In other words, a design familiar from high-end mummy bags.
This type of foot closure provides the most warmth for the least weight, with no fancy features to fail.
One reason sleeping bags might not meet expectations is due to shifting of the down during a night of tossing and turning. This can leave bare spots and lower the effectiveness of the quilt. Nunatak takes design steps to increase fill stability.
The overstuffed chambers on the Arc Element is arguably the most effective method for down control. Doing it right, however, is a balancing act. Too much fill adds weight without additional benefit.
Nunatak single person quilts uses a blend of transverse and longitudinal baffle orientation to prevent the down filled chambers from shifting their content away from the high points. We also do careful tapering and sizing of these individual chambers to help with the issue.
What's in the box?
The quilt, a set of quilt straps, a silnylon stuffsack and a large breathable storage sack
Go to the bottom of this page for the full Arc Element Configuration Menu!
The stuffed size of a 20° medium is 15" long and a circumference of 20"
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