The advanced Ultralight Series of Arc UL quilts are available in a wide temperature range designed with the lightest materials.
Custom features including sizing and weight saving options.
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Custom item. Multi week lead time.
From this page all temperature ratings, sizing options and accessories of the Arc UL are configured
The Arc UL quilt is a specialists' tool, with lowest weight and bulk as the guiding design parameters. Features, functions and materials are all dialed in to meet the UltraLight goal.
The Arc UL is available from a 30°F summer style quilt all the way down to 5°, in steps geared to fit the most useful seasonal applications. By far the most popular all-round rating is the do-it-all 20°.
A five step measure of the inside useful length in 4" increments is used parallel to the subjective and sometimes confusing Small to X-Long moniker. Using this system you can choose how far up the quilt reaches when lying on your back. Reaching just the chin level is the absolute shortest anyone should go, and then only on quilts for the warmer seasons. Forehead 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.
Furthermore the shoulder and foot area widths can be customized for individual needs and sizing. Typically a 2 season quilt can be built a little narrower than a winter oriented set-up. If you're new to backcountry quilts, experiment at home with a blanket before committing to a sizing setup.
Foot End Design
The Arc UL quilts are offered in two foot box configurations, also in the menu below. The traditional Arc design is a 20"-24" permanently closed section finished with a round bottom piece sewn in place. In other words, a sight familiar from high-end mummy bags.
The Vector foot end is a modular concept that allow the user to switch from closed to blanket style open foot area in a few simple steps. This option, while very adaptable to changing conditions, lack a little in thermal efficiency compared to the regular Arc. It also adds some weight, for those who count every gram. A page with a few pics detailing the foot box options is here.
The Arc UL is built with the lightest fabrics we have been able to source.
When using materials as thin as the unique Membrane .66 and Quantum equivalents, some compromise in durability and longevity must be anticipated. Generally though, in the hands of experienced users, normal life spans can be achieved with proper care.
In our experience the worst long term wear on quilt fabrics is the inside liner material. If you want to break with the true UltraLight tradition, and risk adding up to several ounces (!!) of weight, the Arc UL is also available with our soft, durable 1.0 Taffeta black liner, a fabric specifically developed for sleeping bags. Again, this adds weight that is described in the charts below!
Upgraded weather resistance
The Arc UL can additionally be configured with a shell fabric exhibiting considerable weather/moisture protection. In the Shell Fabric menu below this is the Robic. Certain extreme environments will more than justify the increased cost of this upgrade.
Even for the user expecting less arduous conditions, the Robic will help dealing with the damp night time environment inside modern single wall UL shelters, or dew from sleeping under the stars.
Here's a brief description of this material
0.74 oz/yard Robic Ripstop Nylon: Extraordinarily light, this 7D fabric is treated with a microporous PU coating on the inside and a solid DWR application on the weather side. The ability to hold out moisture is very good with a HH of 1000mm. Breathability rating is adequate for down products. For a fabric with a square yard weight of well under an ounce, the Robic is relatively durable, edging out the highly breathable Membrane/Quantum shell also offered.
Besides the custom sourced shell and liner materials, we also consider shock cords, buckles, snaps and other notions as specific targets for UL optimization, further shaving grams.
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 UL Configuration Menu!
|Temperature Ratings Available||30° - 20° - 15° - 5°|
|Length and width choices affect fill weight by roughly ½ to 1 ½ oz, depending on temperature rating.|
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