It is blue on one side and gray on the other. Both sides have a white stripe down the middle to help you visually stay in the center.
It had a hole the diameter of a pencil which I patched. I guess I could have done better because it still slowly leaks. After a couple of hours you have to add some air. Or you can just repatch the hole. See picture of the patch (last one).
This could also be used as a giant floating raft or large stand up paddle board!
It can be filled up with a standard inflatible kayak pump or SUP pump (electric or manual). I sometimes use a little adapter so I can also use an air compressor.