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Ultra-Sil Pack Liner

Keep your pack organized and dry without a bulky rain cover

$34.95 – $44.95

50 liter50 liter
70 liter70 liter
90 liter90 liter
Sky BlueSky Blue
LimeLime
OrangeOrange

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.

$34.95

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Description

The Ultra-Sil™ Pack Liner won the prestigious Backpacker Editors' Choice award in 2006 and this award winner is an excellent solution for keeping contents of your pack dry. It's made of 30D Ultra-Sil™ CORDURA® brand fabric, making it super lightweight and is an oval shape to fit inside packs easier. The extra wide opening roll-top closure folds in three before being rolled and sealed with the low profile buckles. We've used bright colors to help with visibility when packing and unpacking, and a 50L, 70L and 90L size range to cover all options and bag sizes.

Highlights

Durability

Keep it inside your pack and away from hard edges and corners.

Waterproofness

Should be kept in another bag or backpack

Best Use

Backpacking, Travel

Size Guide

50 liter: will fit in a 50-liter pack or smaller
70 liter: will fit in a 70-liter pack or smaller

90 liter: will fit in a 90-liter pack or smaller

Features

  • Ultra-Sil Pack Liner opens wide for easy packing when it's inside a pack
  • Unique top closure: extra fabric at the top folds in and hook and loops into place, then rolls down, creating a more compact closed loop at the top
  • Made of PU coated siliconized CORDURA®
  • Waterproof hypalon roll-top closure does not wick moisture
  • Waterproof seams - double stitched and tape sealed
  • Low profile buckles
  • Slippery finish for easy packing