If fish only bit when it was warm and sunny, and only rose a short cast from shore so waders were not needed, there would be few footgear problems. If we were all teenagers able to wade frigid streams in sneakers, and boat all day in wet T-shirts and Topsiders, there would be no problems. If we never had to walk or hike more than a few yards to the action, there would be no arch aches. Unfortunately, adults need more insulation, support and protection. Feet worn down with extra pounds, or extra miles, need extra help. Add decent traction on slick decks or mossy rocks and it's easy to see why "fish feet" choices are so important.
The wrong footgear can do more than cause discomfort too. I write this with my right foot on a stool. I spent the morning canoeing in a pair of Topsiders, a wonderful cool boater's shoe with a special "no slip" slitted sole. Then I played tennis. I had my tennis shoes in the bag, but did not change. As a result, I now sport a strained instep.
The basic problem is the variety of conditions adventurous anglers face. Tarpon flats in Florida, the heaving deck of an ocean tossed party boat, the carpet of a bass boat, mossy rocks, or hike-in alpine trout lakes all require different footgear. If you bought something for each separate situation you would need a Sherpa to haul your spares.
Fortunately, you can divide angler's footgear into six types: deck and fishing shoes; walking and light hiking shoes; pacs and rubber boots; insulated footgear, Waders and "Hippers;" and specialty footgear such as neoprene booties or reef runners. Few need all of these options, but it's important to know what's available to meet your major needs.
DECK SHOES
Deck shoes need one thing above all else; they must not slip on slick decks. The traditional Sperry TopSider sole still does this best. It uses tiny slits in the sole to squeegee water off decks so your feet do not aquaplane. The original patent seems to have expired, so a number of other firms offer this kind of sole. The sole looks slick until flexed so the slits open. Tops are normally canvas that dries fast when wet. These are a best bet for boat fishermen in warm, dry weather. A leather top model suits colder conditions. The problem with all leather footgear around water is, oddly enough, drying out. Water eventually removes the leather's natural oils so the leather cracks. Quality foot dressings solve the problem.