Ultra-Sil Nano Daypack

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

$39.95

18 liter18 liter
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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 23ºF means a man should be comfortable down to air temperatures of 23ºF. The same bag will also have a Comfort limit, in the realm of 32°F, so a woman would be comfortable down to an air temperature of 32ºF. 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.

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Description

The ultimate in packable convenience! Half the weight and packed size of our award-winning Ultra-Sil™ Daypack, this foldable daypack can be easily stashed in your pocket or on your keyring as the perfect travel daypack. Ultralight 15D nylon fabric, strategically positioned bar-tacks and streamlined paneling ensure maximum strength for minimal weight. 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 is strong enough to carry heavy loads up to 45 lbs / 20kg (although the non-padded straps are far more suitable for those unplanned smaller transport needs you will face on your travels).

Features

  • Ultralight 15D high strength nylon fabric
  • Exceptionally compact packable daypack design
  • Siliconized nylon fabric for easy packing and water resistance
  • Asymmetrical zipper design for tiny packed size
  • Bar-tacks at stress points for added strength