Ultra-Sil Duffle Bag

Packs down to the size of a tennis ball

$44.95

40 liter40 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 Ultra-Sil™ Duffle Bag is the ultimate in lightweight packable duffle bags. With an incredible 40L capacity and strong enough for a heavy load, it is the perfect bag for airline carry-on, impromptu excursions, weekends away or just going to the gym. Super compact and super light, it is an obvious choice as a spare bag on any trip.

Features

  • 40 Liter / 2420 cu. in volume capacity and strong enough to carry a heavy load
  • Ultra-Sil fabric for packability, strength, and durability
  • Durable water-resistant zipper
  • Bar tacked, reinforced stitching at key stress points
  • Fits snugly in the accompanying stuff sack with a carabiner key ring attachment