I used to wear a very good (and, I see now, inexpensive) moccasin named Kaibabs as a kid. They had a very tough horsehide sole that was like bearing grease on wet concrete. I read about a compound to put on them called Sole-Saver, made by Edward Schlosser Associates in Ridgefield Park, NJ. Unbelievably tough, grippy, and waterproof. I spent an hour yesterday trying to google it and the supplier I got it from, Carpet Products Co. I see where the folding kayak crowd use it and another compound named Flexane for hull repair. If anyone can locate Sole-Saver (I know it was still available in 2007) or knows anything about Flexane (which is expensive and of unknown traction qualities), please post it here. I've gone to Bean boots too for stalking, but my feet sweat like the end of days in them here.