Sea To Summit Ultra-Sil Compression Drysack- L ...

Sea To Summit


Based on the success of our Compression Dry Sack, we've made a lighter version from 30D Ultra-Sil ®. We retained all the clever functionality of the original design with all the lightweight touches of our Ultra-Sil ® technology. The Ultra-Sil ® Compression Dry Sack compresses gear to one-third the volume while keeping it dry.


  • Waterproof seams, double stitched and fully tape sealed
  • Waterproof and air-permeable eVent ® fabric base
  • Hypalon ® closure does not wick moisture
  • Reinforced stitching on all stress points
  • Air compresses out, water can't get in
  • Roughly half the weight of the original Compression Dry Sack


  • Closure : Drawcord
  • Compression Straps : Yes
  • Waterproof : Yes
  • Material(s) : Event/Cordura nylon
  • Gear Capacity (cu. in.) :
  1. 6 liter(XS) : 366 cubic inches
  2. 10 liter(S) : 610 cubic inches
  3. 14 liter(M) : 854 cubic inches
  4. 20 liter(L) : 1,221 cubic inches
  • Dimensions : 
  1. 6 liter(XS) : 6 x 14 inches
  2. 10 liter(S) : 7 x 16 inches
  3. 14 liter(M) : 8 x 18 inches
  4. 20 liter(L) : 9 x 20 inches
    • Weight:
    1. 6 liter(XS) : 2.3 ounces
    2. 10 liter(S) : 2.6 ounces
    3. 14 liter(M) : 3.2 ounces
    4. 20 liter(L) : 3.4 ounces

    What is included:

    • Sea To Summit Ultra-Sil Compression Drysack- L (Grey)

    Returns Policy

    You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

    You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

    If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


    We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

    When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

    Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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