I used these on a Cruise of many Norwegian ports, and was happy with the fit and performance.we had rain but not that much to test waterproofness. However when we got home I gave them a good cleaning to get the sheep poop off. I filled the boots with water and it defiantly held in the boot, would it hold indefinitely probably not, but I was impressed. I take a 10.5 wide, I purchased a 11 and the fit was good.