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Ultra-Sil Nano Day Pack

Foldable daypack that packs down to the size of a chicken egg

$29.95

Sleeping Bag Temperature Ratings Explained

The EN Rating scale is a scientific test to determine the warmth of a sleeping bag. The test produces a Lower rating (for male sleepers) and a Comfort rating (for female sleepers). Both are listed in the features table on the product page.

A unisex sleeping bag with a Lower limit of 14ºF means a man should be comfortable down to air temperatures of 14ºF. The same bag will also have a Comfort limit, in the realm of 27°F, so a woman would be comfortable down to an air temperature of 27ºF. These ratings require a sleeping mat with an R-Value appropriate for expected ground temperatures – without this, the sleeping bag itself is unlikely to keep the sleeper warm enough.

A variety of factors impact sleeping bag warmth - the above temperatures are merely guidelines, not guarantees. It’s important to think of a sleeping bag, an appropriately insulating sleeping pad and a liner as a sleep system. For example - if you plan on sleeping in nighttime air temperatures of 27ºF / -3°C, choose a bag with a gender-appropriate rating of 23°F / -5°C, plus a sleeping mat with an R-Value of 2.5 to 3, and consider a Reactor thermal liner.

 

Description

Extremely light, extremely packable – the UltraSil Nano Daypack is the perfect companion for urban adventures. This featherweight daypack can be easily stashed in your pocket or on your keyring, yet be unpacked to provide 18 Liters of carrying space. The asymmetrical zipper and siliconized Ultra-Sil™ Nano™ fabric make for a compressible daypack that can pack down to the size of a chicken egg.

With strength well beyond its 1 oz / 30g weight, our 18L Ultra-Sil™ Nano™ Daypack fabric and construction are strong enough to carry much heavier items than you might think. However, the non-padded shoulder straps keep our recommended maximum comfort load limit to 10 lbs / 4 Kg. If you are looking for a more rugged, all-round travel pack, check out the 2.5 oz / 72g UltraSil Daypack.

Technical Features

15D Ultra-Sil®

One of the lightest coated fabrics that Sea to Summit manufactures, the 15 Denier Ultra-Sil is a siliconized nylon fabric with a polyurethane (PU) inner coating for mild waterproofing. This ultralight fabric has a 1,200mm hydrostatic head.

Tech Specs

Product Details

Best Use
Summit Pack, Groceries, Travel
Dimensions
11 x 8 x 19 in / 28 x 20 x 48 cm
Fabric
Ultralight 15D nylon fabric for strength and durability
Gear Capacity
18L
Packed Dimensions
2.7 x 1.9 x 1.8 in
Waterproof
Water-resistant Material
Weight
1 oz / 30g
Zip Options
One-way zipper closure

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