Karrimor helium drybag the karrimor helium drybag is perfect for hikes and adventures crafted from a lightweight nylon with taped seams and a roll top with a clip fastening that helps to keep items protected from the elements the dry bags can also ben used as a water proof liner for normal bags completed with the karrimor logo printed to the font dry bags available in a range of sizes taped seams nylon construction roll top with clip fastening karrimor branding 15