Form Insoles Medium Support Insoles are specially designed to provide customized whole foot cushioning and support. Made with odor and moisture-control properties, this medium durometer insole has 1.6-milimeters of thermo-moldable material that can be molded and remolded up to 5 times. With a low-profile footprint that is ideal for tighter fitting boots and shoes, these supportive insoles are backed by a 100-Day money back guarantee.