Sea to Summit Ultra-Sil Dry Sack

Elemental Outdoor


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Protect your kit from dust, sand and water with this lightweight dry bag from Sea to Summit.  

Sea to Summit Ultra-Sil Drysacks are the feather weight of the available dry bags.  Made of 30D siliconised high-tenacity Cordura® nylon fabric for exceptional strength, this fabric has 2,000mm hydrostatic head.  

Key features:

 - Non-wicking roll-top closure with stiffener at the top for an improved seal
 - Fully seam sealed for water resistance 
 - Translucent for easy visibility of contents
 - Slippery finish for easy packing
 - Round base in all sizes for a even packing space


  • Suitable for paddle sports? Absolutely. The tough nylon material is perfectly suited to watersports use – be cautious around sharp objects or abrasive surfaces.
  • Waterproof? The fabric is more than adequately waterproof – just avoid total submersion, as water can seep through the roll-top closure of any dry bag.
  • Packable? Lightweight Dry Sacks are light enough so they won’t weigh down your pack. 


2 liter: some snacks, longer trip first aid essentials, gloves or beanie (Size: ø13 x 29cm / Volume: 2L / Weight: 0.040kg)
4 liter: a layer and a meal or so worth of food (Size: ø15 x 33cm / Volume: 4L / Weight: 0.050kg)
8 liter: a puffy jacket & a sleeping bag or food for 2-3 days (Size: ø17 x 46cm / Volume: 8L / Weight: 0.095kg)

Top tips:
  1. Rather go bigger than smaller!  For a few extra grams you will get one sack that is more versatile than just a size that only does one job!
  2. Keep items that you don't need regularly, or that you really really want to keep protected in a separate dry bag - like your sleeping bag for example, or a down jacket.

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