Really small, with these do nothing right.
Here in the product information really only the outer dimensions of the dry bag. It wasn't until the product arrived in the mail and when I opened it that I noticed that the dimensions given online were by no means internal dimensions to indicate what could fit inside the bag (or not fit, e.g. Too bad the otherwise qualified dry bag. Now a little expensive shopping for carrying matches.
+ Simple working closing mechanism. Works the same as Minigrip, but is a stiffer act.
+ The material seems to be of high quality and has so far lasted commendably (the product has only been used on a few trips).
The splash water seems to keep well outside, but I myself have no experience with the water resistance of Aloksak in more demanding conditions.