Cracked isn't the first site to reference the flat foot issue. Flat feet can be problematic when it comes to barefoot stuff.
Vibrams are nice as a thin layer of protection. I've definitely stepped on a couple of things that hurt like hell, but would have hurt much more had I actually been barefoot.
Biggest issue with barefoot or vibramz or whatever is too much, too soon, especially on hard surfaces like a track or asphalt.
And if you don't think kettleball squat cleans are difficult, I say, step up to the med-ball
- CJ Kim