Size is stated as five by five and a half but it is smaller than that.  Passport can be put in it by stretching the material but there is little room for anything else.  You have to put the narrow side of the passport in first and then twist the passport around to get it in the leg wallet.  The second pocket is so small as to be almost unusable for anything but a key or a small amount of rolled up cash.  For me it was just tooooo small.