Sea to Summit Ultra-Sil Dry Sack

Sea to Summit Ultra-Sil Dry Sack
$14.95 - $37.95
Please select options


The Ultra-Sil™ Dry Sack won the sought after Backpacker Editors' Choice award in 2006 and is still the ideal dry sack available for backpacking. Made with lightweight, waterproof 30D Ultra-Sil™ CORDURA® brand fabric it's the perfect choice for modular packing to organize your gear inside your backpack like a pro. With an almost translucent look, visibility of contents is easy, and if you're really organized you'll make use of multiple color options to find things easier. Other features include a non-wicking Hypalon® Roll-top closure, a round base for ease of packing and fully seam sealed for water resistance. An excellent choice for lightweight backpacking, cycle touring and travel.


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


Should be kept in another bag or backpack

Best Use

Backpacking, Hiking, Bike Packing & Travel

What this bag could hold

1 liter: a phone (in a waterproof case - double bagging essential), snacks, wallet & keys
2 liter: some snacks and drinks or extra layers

4 liter: a layer and a meal or so worth of food
8 liter: a puffy jacket & a sleeping bag or food for 2-3 days
13 liter: all your clothes for a trip
20 liter: a tent or any Sea to Summit sleeping bag
35 liter: paddle gear, overnight camp equipment or bike gear

  • The Ultra-Sil Dry Sack won the Backpacker Editors’ Choice award, 2006
  • 30D siliconized high-tenacity CORDURA Nylon fabric for extra strength, durability and a smooth finish for easy packing
  • Ultra-Sil fabric has a 2,000mm hydrostatic head
  • Waterproof Hypalon roll-top closure does not wick moisture
  • Waterproof seams - double stitched and tape sealed
  • Reinforced stitching for greater seam strength on all stress points
  • Super compact and ultra lightweight
  • This product is not intended for boating or marine use

Part Numbers

Option UPC Store SKU
Lime / 1L 9327868010486 ULT26718929N
Lime / 2L 9327868010493 ULT2680153N
Lime / 4L 9327868010509 ULT26480018N
Lime / 8L 9327868010516 ULT26428570N
Lime / 13L 9327868010523 ULT27707059N
Lime / 20L 9327868010530 ULT27198175N
Pacific Blue / 2L 9327868010356 ULT28685499E
Pacific Blue / 4L 9327868010363 ULT28205751E
Pacific Blue / 8L 9327868010370 ULT28844639E
Pacific Blue / 13L 9327868010387 ULT29751514E
Pacific Blue / 20L 9327868010394 ULT29253279E