I purchased these right before spending two days walking around Disneyland.  I was prepared with back-up shoes just in case these didn't work out and gave me blisters or made the soles of my feet hurt...never needed them!  They are great for walking, great for standing for long periods of time.  My feet did not tire like they normally would and the mesh is so soft that there were no places for it to rub at all.  I usually wear an 8.5 and these fit true to size.