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Sea to Summit Ultra-Sil Dry Sack


5.0 (3 reviews)

Sea to Summit’s Ultra-Sil Dry Sack’s are 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. 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.

Colour may vary.


  • 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
Dimensions 11 x 24cm (1 Litre)
13 x 29cm (2 Litres)
15 x 33cm (4 Litres)
17 x 46cm (8 Litres)
22 x 53cm (13 Litres)
25 x 61cm (20 Litres)
30 x 70cm (35 Litres)
Average Weight 20g (1 Litre)
23g (2 Litres)
26g (4 Litres)
30g (8 Litres)
40g (13 Litres)
50g (20 Litres)
65g (35 Litres)
Made From 30D Ultra-Sil® CORDURA® nylon with PU coating, 2000mm waterhead

Additional information


1L, 3L, 5L, 8L, 13L, 20L, 35L

3 reviews for Sea to Summit Ultra-Sil Dry Sack

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  1. Ben (verified owner)

    These last about 2 years. Watertight and lightweight

  2. Chris B. (verified owner)

  3. matthew (verified owner)

    Solid construction

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