I have these in all my shoes--even in my house slippers. They helped me get over a painful bout of plantar fasciitis several years ago, and I have not had a recurrence since then thanks to these insoles. I'm at the upper end of the nominal size range. I prefer going up to a larger size so the arch support bump is positioned more forward on the foot. The toe length can easily be cut down to fit.
I stand behind a desk for 8 plus hours and Superfeet have saved by back, legs and feet. I also use these insoles for walking and my back pain has gone . I bought my first pair over a year ago and I swear by them! They make me feel more stable when walking, standing