Those are something I'd have to try on since the front strap is not adjustable. Some shoes designed similarly, the strap is just too long, since my feet are both narrow and low-volume.

Pleased to report that I wore my new sandals (Clarks Lucenas, discussed above) today to two museums in downtown KC, and they did great! Just the slightest bit of rubbing outside my left pinky toe, which probably means I could have tightened that strap up a little more, since my left foot is slightly narrower than my right. But after doing lots of walking and standing, my feet still felt good. Yay!