I have had a really bad case of plantar fasciitis in the past. It got so bad that I had to quit hunting for a period of time. I tried a couple of different inserts for my hunting boots and came across the SOF Sole products. These worked so well that I was able to return hunting. I have replaced all of the insoles that came with my various hunting boots with these. I use them in all of my footwear products, even my slippers.