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Ultra-Sil Dry Sack

Pack organization and water resistance all in one

$11.95 – $32.95

1 liter1 liter
2 liter2 liter
4 liter4 liter
8 liter8 liter
13 liter13 liter
20 liter20 liter
35 liter35 liter
GreyGrey
OrangeOrange
Pacific BluePacific Blue
LimeLime

Sleeping Bag Temperature Ratings Explained

The EN Rating scale is a scientific test to determine the warmth of a sleeping bag. Unisex sleeping bags list the Lower Limit which is the lowest temperature rating that an average male sleeper would be comfortable in.  Our women’s sleeping bags list the Comfort Limit, which is the lowest temperature rating an average female sleeper should be comfortable. The comfort and lower limit temperature ratings are listed in the features table on the product page. 

For example, a unisex sleeping bag that shows a lower limit of 23ºF means a man should be comfortable down to air temperatures of 23ºF while a woman would be comfortable down to the air temperature of 30ºF, the comfort limit. Men and women should always sleep in a layer of long underwear and use a sleeping mat.


Here’s a basic categorization of appropriate use, based on temperatures:
Summer:   >+35ºF
3-Season:   +10 to +35ºF
Winter:   <10ºF


There’s a huge variety of factors that can impact sleeping bag warmth, so these ratings are not guarantees. We always recommend choosing a bag that is a few degrees colder than you plan on going out in (choosing a 23ºF bag for 27ºF nights). If you have any questions about which temperature you should select, or how to improve your warmth in a sleep system, reach out to us on our contact page any time.

$11.95

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Description

The Ultra-Sil™ Dry Sack won the sought after Backpacker Editors' Choice award in 2006 and is still the ideal dry sack available for backpacking. Made with lightweight, waterproof 30D Ultra-Sil™ CORDURA® brand fabric it's the perfect choice for modular packing to organize your gear inside your backpack like a pro. With an almost translucent look, visibility of contents is easy, and if you're really organized you'll make use of multiple color options to find things easier. Other features include a non-wicking hypalon roll-top closure, a round base for ease of packing and fully seam sealed for water resistance. An excellent choice for lightweight backpacking, cycle touring and travel.

Read more about which dry bag is right for you HERE

Highlights

Durability

Perfectly adequate durability for use inside a backpack. Avoid hard edges and corners and sharp or abrasive external objects

Waterproofness

Greater than 2000mm hydrostatic head – more than sufficient water protection for use inside a pack

Best Use

Backpacking, Hiking, Bike Packing & Travel

What this bag could hold

1 liter: a phone (in a waterproof case - double bagging essential), snacks & wallet
2 liter: some snacks, first aid essentials, gloves or beanie

4 liter: shell jacket or gloves / beanie, day-hiking essentials
8 liter: a two-season or a high-end three-season down sleeping bag, dry clothes for a backpacking trip
13 liter: all your clothes for a backpacking trip or a mid-range three season sleeping bag
20 liter: a three-season synthetic sleeping bag plus a Reactor Liner
35 liter: use as a full pack liner for overnight (30+ Liter) packs

Features

  • The Ultra-Sil Dry Sack won the Backpacker Editors’ Choice award, 2006
  • 30D siliconized high-tenacity CORDURA Nylon fabric for extra strength, durability and a smooth finish for easy packing
  • Ultra-Sil fabric has a 2,000mm hydrostatic head
  • Waterproof hypalon roll-top closure does not wick moisture
  • Waterproof seams - double stitched and tape sealed
  • Reinforced stitching for greater seam strength on all stress points
  • Super compact and ultra lightweight
  • This product is not intended for boating or marine use
  • As of 2018: Features the patent-pending 5/8in | 15mm Field Repair Buckle with stainless steel pins