stiff & it rubs all over your foot. vinyl material. should have known not to buy cheap sandals. but i thought how bad can it be there is so little material touching your foot.. they hit the garbage after 30 minutes. decor on top not even glued on right. instead of curving with the top of your foot its straight. not worth the money to send back.  the foot bed is not bad. but you could never walk very long without blisters. save your money