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Ultra-Sil Dry Day Pack

The perfect summit pack

$59.95

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.

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Description

The Ultra-Sil™ Dry Day Pack is a waterproof packable daypack, made from siliconized CORDURA® fabric. This ultra-lightweight and foldable day pack resists water and packs into its own tiny stuff sack complete with a carabiner key ring attachment. The seams are double stitched and sealed with high-density PU seam tape. The unique double hypalon roll-top is non-wicking and creates a good seal. The compression lacing system on the front provides secure additional storage.

Features

  • Double stitched seams and fully tape sealed construction
  • Ultra-Sil high strength and lightweight CORDURA® brand fabric
  • Ultra-Sil fabric and hypalon roll-top for water-resistant performance
  • Reflective compression lacing system
  • Not intended for situations where the pack will be submerged

Technical Features

30D Ultra-Sil®

An incredibly lightweight yet durable fabric used in a large number of Sea to Summit products. This 30 denier Nylon is made with CORDURA® yarns for strength, woven into a ripstop pattern. Two versions of the fabric are used:

  • water-resistant products (such as the Ultra-Sil™ Stuff Sacks) are siliconized on both sides for ultimate packability
  • waterproof products (such as the UltraSil™ Dry Sack are) siliconized on the outside and PU-coated on the inside to allow seam taping.

Both versions have a hydrostatic head greater than 2000mm – which makes them more than adequately waterproof for the types of environments they are intended for.

Cordura®

Cordura® is a special type of nylon yarn used for its strength. These yarns are used in two different product areas:

>  In the siliconized Ultra-Sil™ fabrics used in Ultra-Sil™ Dry Sacks, Stuff Sacks, Compression Sacks, Pack Covers, Travelling Light and Travel Essentials products
>  In the foot section of the extremely tough eVent® Quagmire Gaiters.

    Tech Specs

    Product Details

    Best Use
    Summit Pack, Bike Commuting
    Dimensions
    8 x 4 x 19 in / 20 x 10 x 48 cm
    Fabric
    Siliconized Cordura fabric
    Gear Capacity
    22L
    Pack Access
    Top (hypalon roll top)
    Packed Dimensions
    5 x 2.5 x 1.5 in
    Special
    Reflective compression lacing system
    Waterproof
    Yes
    Weight
    3.8 oz / 110g

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