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Sea to Summit eVent Compression Sack 20L

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A completely new concept in compression dry bags€”there is no valve. This innovation uses an air-permeable base made of eVent waterproof fabric which allows air to be pushed out of the sack but wont allow water to get back in. Suitable to keep contents dry in any wet situation where the bag is not submerged.


  • Waterproof seams are double-stitched and fully tape sealed
  • Waterproof and air-permeable eVent fabric base
  • Hypalon closure does not wick moisture
  • Reinforced stitching on all stress points
  • Air compresses out water can't get in
  • Roughly half the weight of the original Compression Dry Sack