Love these, they are a little more sturdy that the usual ones. They have been made for a working shoe and the bottom has a better grip too meaning they do not slip on wet like the others. I have had problems with my feet from a little girl, I have been in and out of many doctors had many special shoes made etc... and nothing would work I would get cramps and pains no matter what if on my feet for more that 40 mins till I found Crocks. I can do  6 hour on my feet with no pain its really a miracle. For those that have Metatarsal problems of any kind these are Amazing. I would recommend to any one. Love them.