Ultra-Sil Dry Sack - 1L

Sea to Summit

The Sea to Summit 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.


  • 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, Hiking, Bike Packing & Travel

What this bag could hold 1 liter:

  • a phone (in a waterproof case - double bagging essential), snacks, wallet & keys


  • 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


  • Size: 1 L
  • Width: 4.3" (base diameter)
  • Height/Depth: 9.4"
  • Weight: 7 oz

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