John from Harrisburg, Pa writes
The difference between the ThermaCELL Heated Insoles and ThermaCELL Heated Insoles Proflex is that the Proflex has flexible polyurethane material. They both have a remote with three heat settings on it and fit right into your shoe. Their are various sizes depending on your shoe size as well. There are also extra batteries available for both insoles.
Answer last updated on: 12/04/2014