I used my cooler over the weekend. The one I am planning on as a carry on for the plane and the ship. It worked well. However, when I was putting it in the backseat, I remembered someone giving the dimensions for carry ons to the ship. 14x12x9 (or something close). The cooler is roughly 14" in each way. Is this going to be a problem? Will I have to choose another carry on and forgo my snazzy cooler?

Say it ain't so. Please, say it ain't so.