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 won't allow water to get back in. Suitable to keep contents dry in any wet situation where the bag is not submerged. eVent Compression Dry Sacks are made with 70 Denier nylon and work really well for any compressible item (sleeping bags, clothing) which needs to be squeezed down as small as possible yet stay dry. Air just squeezes out through the eVent base, but water can’t get in.
70 Denier nylon