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Compression Sack

Compression sacks for when durability matters most

$24.95 – $34.95

XS / 6 literXS / 6 liter
S / 10 literS / 10 liter
M / 15 literM / 15 liter
L / 20 literL / 20 liter
XL / 30 literXL / 30 liter
Pacific BluePacific Blue
Outback RedOutback Red
Olive GreenOlive Green

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