Crocs has definitely changed the formula/material since the last time I bought them. The quality has gone down as well as the arch support. I'll rate these a middle of the road 3 for that reason. They fit nicely and give my feet the support I need for walking around the house or yard. I did have to wash them before wearing because they seemed a bit oily/slippery on the inside. All in all I'm happy with the purchase. Just wish they had the arch support that my old ones had (which also seemed to be a sturdier and thicker material).