I usually take a 8 1/2 to 9 D in most shoes, the 9 regular fits well and is comfortable. So far I've only been wearing them for a week so I can't give any useful information on longevity, but they look well put together. They're a little stiff for everyday walking around shoes though that might change with time. I was kind of hoping for something that would cover all the bases in one shoe, but for a work shoe it's pretty good. It's really hot right now and though my feet aren't cooking the shoes certainly aren't sandals either.