>>990325what kind of fad did you buy in? what's the reason you wanna do this?
but anyways you need to train you feed, to walk without dampening soles and their protection vs sharp stuff and impact. i have the vibram 5 fingers they are nice but with the thin soles they are only good for short walks less the 20km
so get so barefeet walking shoes and train.
also get vaccines up to date, every wound is a risk when you walk a lot. Seriously you don't want to get tetanus, anthrax, botulism or Clostridium. that cause a whole range of shit from death to diarrhea over Gas gangrene, to necrosis or just annoying shit like infections and hookworms.