I have a pair of hodgman caster 3.5mm neoprene stocking foot waders that keep me warm and dry in my float tube. Do I need to buy wading boots or shoes to wear fine with them? I don't want to wear them to the store to try on shoes. How many sizes should I go up? Do I even need shoes, or can I just throw some fins on over bare wader? I wore just the waders the first time I went out, but that was super uncomfortable getting in and out of the water.