These headphones are AMAZING! Once I emptied out the sand, the footbed was flat again. Its absolutely perfect and has ensured my hands and wrists are at the correct height for my keyboard. I was warned they run big, and they do. I was a lil nervous buying this with the reviews it had. Gama alta - TOP (sin duda). but they certainly do not. The shoes fit as expected. These are by far the best support sandals I have ever wore. They feel pretty sturdy (even 6 rows tall!