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Compression Sack

Compression sacks for when durability matters most

$24.95 – $34.95

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.

$24.95

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Description

The Compression Sack is the perfect solution for squishing down bulky soft items for organized packing. These burly sacks are built from a water-resistant 70D Nylon fabric, offering excellent strength to weight. They can allow compression down to one-third of their original volume, which means you save valuable space in your pack for other essentials.

Highlights

Packability

In a perfect world, with perfect contents this compresses down to 1/3rd of its original volume (i.e. from 15 to 5 liters)

Best Use

Internal pack organization, packing up whatever you feel like belongs in a bag that can be compressed

What this bag could hold

6 liter: a layer, beanie, and gloves
10 liter: a puffy jacket & a compact sleeping bag
15 liter: all your clothes for a trip
20 liter: a tent or any Sea to Summit sleeping bag
30 liter: Sea to Summit sleeping bag and your extra layers

Features

  • Flip-Top-Lid design prevents strap tangling
  • Made of 70D PU-coated Nylon
  • 4 straps for even compression; eliminates bulging
  • Extra long straps so it's easy to fill these to max capacity
  • Nylon webbing pull handle on the bottom
  • Note: Seams are not tape-sealed; therefore this product is not waterproof - only water resistant

Technical Features

70D Waterproof Fabric

Strong and lightweight 70 Denier Nylon fabric. The PU coating is waterproof (rated to 2,000mm hydrostatic head) and is colored bright white to make it easy to find your gear inside these bags.

Tech Specs

 
XS 6 LITER
S 10 LITER
M 15 LITER
L 20 LITER
XL 30 LITER
COMPRESSED VOLUME
DIMENSIONS
GEAR CAPACITY (L)
WEIGHT
6 L to 2 L
5.5 x 14 in / 15 x 34 cm
6 L
3.9 oz / 110 g
10 L to 3.3 L
7 x 16 in / 18 x 40 cm
10 L
4.5 oz / 128 g
14 L to 4.5 L
8 x 18 in / 20 x 46 cm
14 L
5.5 oz / 156 g
20 L to 6.5 L
9 x 20 in / 23 x 50 cm
20 L
6.2 oz / 175 g
30 L to 10 L
10.5 x 23 in / 27 x 58 cm
30 L
7.6 oz / 215 g

Customer Reviews

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