ProThotics - Biomechanically Designed Foot Orthoses. Recognized for their PLASTAZOTE® and Microcel Arthritic & Diabetic Shoe Insoles. The Prothotics family of orthotics have been biomechanically designed to meet the exacting standards used by many professional foot-care providers. Designed by a group of leading medical professionals, Prothotics provide a cost-effective method for treatment of many clinical pathologies diagnosed by podiatrists, and other foot-care professionals. These biomechanically designed orthotics go beyond standard cushion insole products. They offer a cost-saving, first step treatment option. Prothotics can relieve many existing conditions and help prevent the development of future ortho/footcare problems. Prothotics insoles are manufactured in the USA using the highest quality materials.