I know that shell fit is more important than using a foot measuring device for size, but who can settle the question of whether the size should be measured standing or sitting?
Sitting down, the foot is in its unweighted position. Some fitters say that's the position the foot should be in while weighted but SUPPORTED BY THE RIGHT ORTHOTIC.
Standing up the weighted foot splays and lengthens. Some say well then, get yourself the right orthotic and it won't do that, and measure the foot unweighted.
Others---and I have read this in this forum---say that the foot is intended to change shape with weight and pressure changes; it is not meant to rest rigidly on a hard orthotic. That would mean, measure the foot weighted.
I ask this because my foot measures 24 seated and 25 standing. Some fitters insist that 24 is the correct size for me, whereas every 24 boot that I tried on was too small. It's very hard to tell these folks the boot doesn't fit when the measuring device claims I'm a 24.
Just curious what you think about measuring sitting or standing.