I can see the etthical/sanitary issues are in play, but I don't see how a person on foot in the Western WA rivers could even stand up....it's already a treacherous proposition as it is without a wading stick, (getting old too =)...I have covered some ground in the mf of the Snoqualmie lately, and I had one night in a pair of merrell hikers, and it was damn near impossible to cross the river, absolutely no traction at all. The shoe monger was replacing an eye that popped loose on my felts.....I'll keep them going as long as possible, and I think the sanitizing of my boots will also be a habit to take up. The only water they have seen is the Snoqualmie the last few years