These stained my feet repeatedly. I'm in florida and it rains OFTEN. for the first few months, i had to bleach my feet to get the black or brown off of them. I bought 2 pairs because they were super cute and had at least SOME arch support. They were pretty hard as you can imagine since the low profile didn't allow for any cushioning. They were light weight and low profile compared to the vionics i usually wear an i needed something slim to go with lightweight sundresses. Too bad they didn't hold up. they both lasted only a little over 1 year then the material started to kinda fray and look awful so in the garbage they went.