BackBack

eVac Dry Sack

Compress to fit gear in funny places

$17.95 – $44.95

3 liter3 liter
5 liter5 liter
8 liter8 liter
13 liter13 liter
20 liter20 liter
35 liter35 liter
65 liter65 liter
GreyGrey
Pacific BluePacific Blue

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.

$17.95

Other ways to purchase

No Online Retailers Stocking Current Selection

Description

The eVac™ Dry Sack utilizes 70D lightweight nylon fabric for strength and eVent® waterproof fabric on the base to allow eVac-uation of air for compression. It's an excellent option for storing and compressing clothes and sleeping bags without the use of straps. Just pack the items in, roll the sack down and push the air out to save valuable packing space within your backpack. They're an oval shape, making them perfect for sliding into the contours of your pack and all seams are double stitched and tape-sealed.

Read more about which dry bag is right for you HERE

Highlights

Durability

Ideal for backpacking and sea kayaking, but avoid pointed gravel / other sharp objects

Waterproofness

10,000mm hydrostatic head – more than sufficient water protection for backpacking use (avoid full submersion)

Best Use

Backpacking, Travel and Bike Packing

What this bag could hold

3 liter: a puffy vest
5 liter: Extra layers or a high-performance sleeping bag (such as the Spark 25°F) or a quilt (Ember 25°F)

8 liter: a two-season or a high-end three-season down sleeping bag; a puffy jacket
13 liter: a mid-range three season sleeping bag
20 liter: a three-season synthetic sleeping bag plus a Reactor Liner
35 liter: use for overnight gear or as a pack liner for 30+ Liter packs
65 liter: use as a pack liner for 50 – 60 Liter packs

Features

  • Air permeable, waterproof eVent® fabric base
  • Valve-free air expelling design for compact packing
  • 10,000mm hydrostatic head, lightweight durable Nylon fabric
  • Waterproof durable roll-top closure does not wick moisture
  • Waterproof seams - double stitched and tape sealed
  • Reinforced stitching on stress points
  • Space saving, low profile, streamlined shape
  • Oval base resists rolling, stays where you put it
  • As of 2018: Features the patent-pending 5/8in | 15mm Field Repair Buckle with stainless steel pins