I have a very narrow foot and appreciate that Grasshopper has some very nice narrow shoes.  However, the sandals that I've found only come in medium so I thought perhaps with the velcro they would adjust enough that I could wear them - wrong!  Yes they adjust BUT the amount of velcro is about an inch AND the narrow grommet won't allow the strap to get any tighter.  Basically they are stingy with the velcro and there is no way these could fit a narrow foot.  Unfortunately they are going back.  But.. if you have a medium foot than the sandals are cute and adjustable I'm just bummed that I can't wear them.