I am buying my fourth pair. I've been wearing them for about three years as a nurse, and they are the most comfortable shoes I've ever worn, and I love that they "breathe". About the sizing- in the past 2 years, the sizing of this shoe seems to have changed. The first pair I bought was normal sizing. After they revamped the shoe, it is very narrow. I've seen a lot of reviewers saying to order a half size up. For me, the length of the shoe is correct, but the width is very narrow. I normally wear a 9 wide, but after they changed the sizing, I now have to order a 9 double wide. These shoes are very durable. As a nurse, I wear them 5 days a week for 8 hours a day, and they will typically last well over 6 months before I can tell they're starting to become worn. Love these shoes! Am so excited they now have the grey/pink.