I use breathable waders without built-in boots. I would recommend them for several reasons. First, if you buy them in a bigger size than you need, you can wear heavy socks, fleece pants, etc, underneath to keep you warm if it is cold. Next, the breathable ones allow moisture from your body heat to escape, while rubber ones trap this and get you wet and cold. When I'm kayaking, I don't usually wear boots. I do have felt-bottomed wading boots when I'm wading in rocky rivers in Washington.