From the beginning I thought they were perfect but after 5 months I see that the sole is cracked and there are holes on the inside from the sides near the heel. It was estimated that it was less than 30 miles total mileage when the wear was so noticeable, not a very good result compared to the 300 miles normal shoes should show. By the way, I'm not the heaviest guy in the world (170 lbs) and I didn't run or jog, just walked the dogs. So the shoes are good but don't last as long as you would expect from the Crocs brand (the longest I think will be 40-50 miles or about a year if you use 5 pairs for at least a week). Not good for the price :( and definitely not a substitute for an athletic shoe, sadly too casual to last. Photos taken on a run of about 60 miles. could have been better :(