I am surprised to read about the difference in sizing that some have reported. I have two pairs of the older Quest 3d, and a pair of the latest 4d model which I wear every day to work. They all fit true to size (11D), which is the same size I wear in everything else, except for the Crispi Hunter GTX, which I have in 11 EE to allow for wearing really thick wool socks while hunting. As others have stated, they are not waterproof, but they are very comfortable, and provide great support. I wait until they go on sale (Midway, etc) to get them at a reasonable price.