I would bet they would be too small. In Akron, in the winter, you need room for thicker soxs and in the summer heat can make you feet swell. For the next poster of course they are tight after 3 hours exercise makes your feet swell. Reset the straps/laces and keep going. Some cycling shoes are made narrower than regular shoes for the same size. Something about tight shoes making for more efficient power transfer. Works for profesional dancers too. I have mild circulation problems so I buy sport shoes a size larger than office shoes.