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
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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. 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 at which 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. 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. Men and women should always sleep in a layer of long underwear and use 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.


Here’s a basic categorization of appropriate use, based on rated temperatures:
Summer:   >+35ºF / +3°C
3-Season:   +10 to +35ºF / -15° to 0°C
Winter:   <10ºF / -15°C


A huge variety of factors can impact sleeping bag warmth - the above temperatures are merely guidelines, not guarantees. It’s important to think of a sleeping bag as one element in a sleep system which also includes an appropriately insulating sleeping pad and a liner. For instance - 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 nights, plus a sleeping mat with an R-Value of 2.5 to 3, and consider a Reactor thermal liner. If you have any questions about which temperature sleeping bag / R-Value sleeping mat you should select, or how to improve your warmth in a sleep system, reach out to us via our contact page any time.

$17.95

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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