Sea To Summit Ultrasil Dry Sacks

Model: 1L Blue
Sale price$12.00


The Ultra-Sil® Dry Sack is made with a lightweight, amazingly strong, durable and waterproof fabric that is almost completely translucent so you can see the contents and has a slippery surface for easy packing. Sea to Summit Ultra-Sil Drysacks are 50% lighter than the Lightweight Drysacks. 

Other features include tape-sealed seams and a Hypalon® roll-top closure for extra waterproofness and double-stitched seams and reinforced stitching on stress points for greater durability. The ideal dry sack for backpackers.


  • Made from Ultra-Sil® CORDURA® Nylon with Polyurethane (PU) coating providing a hydrostatic waterhead of 2000mm for packability, exceptional strength, durability and waterproofness
  • Non-wicking Hypalon® roll-top closure with stiffener at the top for an improved seal
  • Unique Field Repair Buckle allows you to easy and quickly replace it if it's damaged
  • Double stitched and fully seam sealed for water resistance
  • Reinforced stitching for greater seam strength on all stress points
  • Translucent for easy visibility of contents
  • Slippery finish for easy packing
  • Round base in all sizes
  • This product is not intended for boating or marine use


  • 1L: 20 grams, 11 x 24cm
  • 2L: 23 grams, 13 x 29cm
  • 4L: 26 grams, 15 x 33cm 
  • 8L: 30 grams, 17 x 46cm
  • 13L: 40 grams, 22 x 53cm
  • 20L: 50 grams, 25 x 61cm
  • 35L: 65 grams, 30 x 70cm




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