I bought these for an event.  I picked them because they were low heeled wedges so I expected comfort for at least a couple hours.  After 15 minutes, they had given me open blisters where the buckle affixes to the strap.  I have pretty skinny ankles, but I tried them on all 3 settings and nothing helped.  Finally I had to walk a block, buy another pair of shoes, and literally throw these away because I had no place to keep them.  Total waste of money!