The Footprint Kingfoam Orthotics insoles drastically reduces sore ankles and leg fatigue to help you stay on your feet longer. Designed with insight from skateboarders, this insole provides superior cushioning and primo protection by turning the energy from impacts into heat. Recommended by doctors and used by professional skaters like Brandon Biebel and Aaron "Jaws" Homoki, legit protection is now more affordable than ever.This insole is shaped with built-in arch support and a formed heel cup for added protection. Made of polyurethane and three millimeters of full length King Foam. It's a little thicker and tends to work best in vulcanized shoes, but can still be worn in cupsoles.