This is my second pair of Clark's Vestal slip on shoe, and they are  somewhat different than the first pair I bought a couple of years ago. The first pair (green) had perforated tiny holes all over the shoe, but there were no larger holes as in this shoe.  Also the other shoe fit a little looser; both pairs are size 12 medium, and that is what I usually wear.  However, this pair is not nearly as comfortable because of the tighter fit.  The soles on both shoes are the same, the back is the same; even inside they look the same; overall they are very close in basic style.  If I was rating my first pair, they would be a full 5 stars; I dropped this pair a star because the fit is not the same.  As to holding up, my other pair is still in excellent shape, and I have worn them many, many times as they are my favorite shoe; I just wish these would be as comfortable as they are good looking.  Oh well, sometimes shoes vary a bit in size even when the same size; that's why it's best to try shoes on in a store!