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Sea to Summit Ultra-Sil Compression Dry Sack




Availability: In Stock!

Ships tomorrow.

Availability: In Stock!

Ships tomorrow.
Item # STSGA205M
By utilizing air permeable 30D waterproof sil-nylon fabrication, the Sea to Summit Ultra-Sil Compression Dry Sack allows air to escape without any need for a purge valve.
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By utilizing air permeable 30D waterproof sil-nylon fabrication, the Sea to Summit Ultra-Sil Compression Dry Sack allows air to escape without any need for a purge valve. This ultra-lightweight design allows ounce-counting backpackers and thru-hikers to save weight while still keeping contents protected from moisture.

While the dry sack is not a true submersible, it does deliver a high-level of water protection. Double-stitched and fully taped seams bolster strength and protectiveness. The roll-top Hypalon closure opens wide for easy loading and unloading. A top lid adds greater protection and serves as the anchor for the side compression straps.

The Sea to Summit Ultra-Sil Compression Dry Sack is available in Xxsmall (), Xsmall (compressible from 6L to 2L), Small (10 L to 3.3 L), Medium (14L to 4.5 L), and Large (20L to 6.7L) size options.

  • 30D Diamond Ripstop Siliconized CORDURA
  • 4 straps for even compression
  • Extra long straps so these sacks can really be filled to capacity
  • Bar tack reinforced stress points
  • Pull handle on the bottom
  • Slippery finish for easy packing
  • Note: seams are not tape-sealed; therefore this product is not waterproof - only water resistant


Real Customer Reviews

Average Rating:
(based on 8 real customer reviews)

8 Items

Reviewed by Ramiro T. - October 14, 2018

Likes: Waterproof, durable

Dislikes: Nothing as of now

Sea to Summit Ultra sil compression sack
Reviewed by Bill B. - June 4, 2018

Likes: Very lightweight and durable

Dislikes: Probably should have gotten a large for my down bag. However the medium has worked.

Great lightweight compression drysac
Reviewed by Steven B. - April 19, 2018

Likes: I'm using this for my clothes bag when backpacking and this works really well!

Dislikes: N/A

Good compression sack
Reviewed by Johanna F. - April 19, 2018

Likes: - Very light weight
- Great compression (really gets my 9L sleeping bag down to a small size)
- Easy to compress

Dislikes: - Compresses into slightly odd shape (sometimes not symmetrically)

As described by the manufacturer. Great product, does the, does the job perfectly !!!
Reviewed by Wes S. - November 10, 2017

Likes: Great look and appearance

Dislikes: none

best compression dry sack out there
Reviewed by Alex - September 8, 2017

Likes: extremely lightweight, compresses very well

Dislikes: wish it was cheaper

Does the job well (but pricey)
Reviewed by Ian G. - September 5, 2017

Likes: -Fits many sizes

Dislikes: -Pricey when other compression sacks could the job for cheaper

Lightweight Dry Compression Bag
Reviewed by John R. - August 1, 2017

Likes: A lightweight dry compression bag. Easy to seal and compress Great for saving space in your pack.

Dislikes: Not really a dislike more of a comment. The large is big. I use a medium for my sleeping bag and a travel pillow.

Also, I wish the dry compression bags came in different colors

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