What is the best insole for your shoes when you have plantar fasciitis?

Various. There are various insoles that work for a wide variety of patients. Some athletes require a custom molded orthotic that is stiffer and more supportive. Some elderly patients require a softer more cushioned arch support that is prefabricated. Many of the insoles sold in stores are not worth the money and have little support for many people. See your foot doctor for the best insole for you.
Support. A full plantar support from heel to below your metatrsal heads with a heel wedge to control the motion.
Silastic heel cups. Research has shown that silastic heel cups are 86% effective in helping with the treatment for plantar fasciitis.