Ultra-Sil Nano Dry Sack

Backpack organization for gram counters

$12.95 – $34.95

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

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.

$12.95

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Description

Designed with ultralight backpacking in mind the Ultra-Sil™ Nano™ Dry Sack is made from lightweight  15D siliconized Nylon. With the use of featherweight 15D fabric, these are perfect for use inside your pack to keep gear organized and dry. Using a hypalon roll-top closure that doesn't wick moisture, an oval base for easy packing, these are fully seam sealed for water resistance. Ideal for backpacking, climbing, cycle touring and modular packing where lightweight and low bulk is key. 

Read more about which dry bag is right for you HERE

Highlights

Durability

Keep it inside your pack and away from hard edges and corners

Waterproofness

Should be kept in another dry bag or backpack

Best Use

Backpacking, Travel, Bike Packing

What this bag could hold

1 liter: a phone (in a waterproof case - double bagging is essential), snacks, wallet & keys
2 liter: some snacks and drinks or extra layers

4 liter: a layer and a meal or so worth of food
8 liter: a puffy jacket & a sleeping bag or food for 2-3 days
13 liter: all your clothes for a trip
20 liter: a tent or any Sea to Summit sleeping bag
35 liter: paddle gear, overnight camp equipment or bike gear

Features

  • Ultra-Sil Nano 15D Nylon fabric for high strength to weight performance
  • Ultra-Sil Nano has a 1,200mm hydrostatic head
  • Waterproof hypalon roll-top closure does not wick moisture
  • Waterproof seams - double stitched and tape sealed
  • Reinforced stitching on all stress points
  • Siliconized fabric with a smooth finish for easy packing
  • Compact and super lightweight with an oval base design for easy packing
  • This product is not intended for boating or marine use
  • Intended for use inside a bag or backpack