I LOVE these sandals!  Just got back from Greece, spent 2 weeks walking on cobblestones, up and down stairs, and on slippery marble.  They are comfortable for 6-8 miles/day use, and the soles are thick enough to shield your foot from feeling rocks under your feet.  Great support too (I usually wear orthotics in my shoes). I bought these about a year ago, wore them to Barcelona, Bordeaux, Hawaii, and Alaska and they are the best!  I also golfed in them when we decided to rent clubs and play a round while on vacation.