Many years ago a chiropractor told me to use these instead of the expensive custom-made ones I had been using. He was right, these are better, much better. I have been using the spenco arch cushions insoles for a long time – very comfortable. They have helped with my high arches and unstable (due to scoliosis) hips. I use 3/4 length arch cushions whenever I am going to be doing housework or walking a lot in my walking/running shoes. I use the full length in my “work boots” doing any kind of yard work. They are too large to fit into regular dress flats or heels.