The true test: up and down subway stairwells, walking for miles around New York City. I have problem feet, but they held up great in these shoes. No rubbing, pinching, scratching or excess sweating. The sole is surprisingly comfortable, since the shoes are very lightweight. I would say that they do run a little wide, which didn't bother me since my feet are a B mostly, but C sometimes, depending on the shoe. My normal shoe size was fine. I took one star off because I think the price is high for a canvas slip on.