what size is it? (height, width) and volume?
DUSTIN W Not sure on exact size but it is very large. around 3 ft long by 18 inches wide. its an ok bag. we use it on our boat and it holds a days worth of towels sunscreen and other beach items for a family of 4.
LAWRENCE M Good marketing procedure!
The total height is 22"; diam of the bottom is 9.25"; total volume is about 1478 cu. inches. However, about 8" of the length is functionally lost when the open bag end is rolled and sealed to make it water proof. That renders the functional volume to about 1075 cu inches. By rolling the end a bit less, more volume can be achieved. It's a good boat bag and plenty of volume for most two tank boat trips or more casual use for stuffing clothing etc.
STEVEN N It is 28 inches high and 11.5 inches in diameter at the bottom. It does fold at the top so you loose a little volume.
MARK F Don't remember exactly, but big enough to put two towels, 2 T-shirts and room for keys, cell phone, etc. Great utility on a dive boat, you can see what's inside and it keeps things dry with water everywhere.