Originally Posted by striker
I was wondering if someone with a widish feet and low instep can somehow fit into a shoe with a normal width and high instep. Mathematically, this would somehow be "equivalent" in total internal volume.
While not ideal, would a high instep compensate somewhat width wise? Square pegs into round holes? Thoughts?
It depends on the foot...I would not call it ideal in any case.
That said, except in the case of someone with "medical" problems--pes cavus, that sort of thing--the whole idea of whether or not a last has a high or low instep is kind of bogus and beside the point in my opinion. Internal volume...in several dimensions...is more important. Long heel, short heel, high and low instep girths are the more important and determining factors. If the measurements are right, the shoe will fit. I always use the analogy of a water balloon. As long as the skin of the balloon doesn't stretch, you can flatten it and circumference and volume will be the same as when you squeeze it into a more nearly vertical configuration.
The fly in the ointment, however, is insole width. This is not so malleable. In terms of width, the insole should be near-as-never-mind identical to the weight-bearing footprint in the area of the ball of the foot and the heel--tread width and heel seat width. Too wide or too narrow creates problems both for the shoe and for the foot, in some cases.edited for punctuation and clarityEdited by DWFII - 5/4/15 at 5:59am