Great medium duty dry bag, with roll top closure. Waterproof even if submerged ( if closed properly). Compact when not in use, but great size to fit the gear you need. Fits into little corners of your sea kayak or touring and whitewater boat. Flexible enough for easy storage and features a clear panel so you can see whats inside.PVC welded seams and round base. To close properly make sure that the edges are touching and not creased. fold down at least three rolls before closing the buckle.