I purchased these sandals in three colors - beige, pewter and black.
My daughter also bought them in black. The black, worn more often, did not hold up well and became stretched and lost support value. The pewter, for some reason, possibly the dye, seems the strongest. I don't wear the pewter and beige as often, so they'll probably last a while longer. The shoes are comfortable, but I wouldn't recommend them for heavy walking such as on a vacation where you plan to walk a lot.