Try looking at the more casual shoes, as opposed to the racier types. The racier shoes, with stiff soles, seem to have a narrower fit. I don't have duck feet, but, definitely need a wider shoe. I'm currently wearing Specialized Tahoe MTB shoes, both on- and off-road. They're very comfortable to walk in. The newer model isn't quite as casual looking, though. The Keen Austin is, also, a wide shoe.