All of the above ...seriously I don't know why every person who wears wading boots over their stocking foot waders does not have a pair of the new Korkers with interchangable soles. Three Rivers Marine is now carrying them and I have had them for about a year now. They are amazing. Studded with felt for wading, rubber vibram sole for long hikes, and straight felt for in and out of the boat wading where the studs would tear up the bottom of the boat. Takes about two minutes to change out the soles and off you go. Just my 2 cents.

CM