this be the first pair of Birkenstocks I have own - and it will not be the last . the sort footb be appeal to I . I be advise -lrb- by a birkenstock lover -rrb- to start with short wear and increase the amount of time worn until my foot get use to the footbed . I wear they for about three hour the first time and I realize what my friend be talk about . it be too long . my arch hurt . she assure I I would get use to they if I start slow , add time to each wear - and then I could wear they all day without a problem . she be right . I have flat , pronated foot that require support . these sandal seem to work well .