Based on the gap, if I went any smaller the shoes would not have fit. As it is, after an hour both my heals are red  & raw from the friction. I tried to use moleskin to help, which hardly provides any significant difference. I have also attempted to put inserts in the toe of the shoes to push my feet back securely to prevent the slippage, which it almost worked. However the top of my toes were squished against the top of the shoes, so not a good fix.<br />The shoe width was fine  & I can feel good arch support, don't see I'd be buying a similar type of shoe in the future.