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eVac Dry Sack

Compress to fit gear in funny places

$19.95 – $46.95

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.

$19.95

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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.

ARE Evac dry sacks...?

  • Good for modular packing in a backpack?  Yes! Use them for all compressible items, squeeze the air out then pack the dry sack into a tight space so it does not draw air back in. Perfect for sleeping bags and insulated clothing.

  • Suitable for paddle sports?  Yes – but the ability to squeeze air out of the dry bag does not gain you much in a canoe/kayak (the Lightweight Dry Sack may be a better choice). If you do use them, apply reasonable caution in sharp and abrasive environments.

  • Waterproof?  The body of the dry sack is more than adequately waterproof (10,000 mm hydrostatic head) – just avoid submersion, as water can seep through the roll-top closure of any dry bag.

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
  • Hypalon 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
  • Features the patent-pending 5/8in | 15mm Field Repair Buckle with stainless steel pins

Technical Features

70D Waterproof Fabric - High Performance

Super tough, super pliable, high thread-count 70 Denier fabrics. The PU coating is highly waterproof (rated to 10,000mm hydrostatic head), and is colored bright white to make it easy to find your gear inside these bags.

eVent™ Fabric

eVent™ fabric is an air-permeable, waterproof laminate used in two different functional areas in Sea to Summit products:

 

  1. In the base of our best-selling eVent Compression Dry Sacks, Evac Dry Sacks and Ultra-Sil™ Compression Dry Sacks. In this application, the laminate utilizes a 40 denier nylon face fabric: the material allows air to be pushed out of the dry sack/compression dry sack but prevents water from entering. This means you can compress the air out of a dry sack without needing a purge valve!.
  2. In the upper section of our Quagmire and Alpine Gaiters. In this application, the laminate utilizes a 70 denier nylon face fabric. The material allows perspiration to pass through easily but prevents external water from entering. The result: waterproof protection and superior breathability!

Tech Specs

Product Details

Best Use
Backpacking, Bike Packing, Travel
Closure
Hypalon roll-top closure
Material(s)
70D nylon body and eVent fabric base
Repair Buckle Size
5/8in | 15mm (2-Pin)
Shape
Oval base to resist rolling and an ideal height-to-width ratio for easy packing
Waterproof
Yes, in situations where the dry bag will not be submerged
 
3 LITER
5 LITER
8 LITER
13 LITER
20 LITER
35 LITER
65 LITER
DIMENSIONS
GEAR CAPACITY (L)
WEIGHT
7 x 4 x 11 in / 17 x 11 x 28 cm
3L
1.5 oz / 42g
7 x 4 x 15 in / 17 x 11 x 39 cm
5L
1.7 in / 48g
8 x 5 x 17 in / 21 x 13 x 44 cm
8L
2 oz / 58g
9 x 6 x 20 in / 23 x 15 x 51 cm
13L
2.4 oz / 69g
11 x 7 x 24 in / 27 x 17 x 60 cm
20L
3 oz / 86g
13 x 8 x 28 in / 33 x 21 x 70 cm
35L
4 oz / 112g
15 x 10 x 33 in / 38 x 25 x 85 cm
65L
5.2 oz / 148g

Customer Reviews

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