I know there are several threads about Five Fingers in General, but the Flow is of particular interest because of the vapor barrier effect. Do you think this would prevent blistering. With as tight as you would want to fit these the effect may be like wrapping your entire foot in duct tape?
How long would you think it would be safe to wear a shoe that doesn't breathe without having to worry about trench foot. Vibrams website says they are capable of "light trekking."
