Get some with shoulders that buckle not just adjust. A belt above the waist is nice too. Chest pockets are also nice. Insulation depends on water temp. The type of boot to get will depend on the river bottom. A rocky bottom with faster current will be slick and big cleats will suck. The cleats will help sinking so much in a real muddy bottom though.
Whatever you get make sure to poke holes in the bottom of the boots though, this will help drain them when moisture is trapped inside.
Just Relax wrote: