Compression Sack

Compression sacks for when durability matters most

$22.95 – $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. 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.

$22.95

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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