Jason Markk Level Up Insoles are far superior in support and comfort to that of most stock insoles. We utilized four different densities of foam. The layer of memory foam conforms to the foot creating a comfortable, custom fit, while two types of rebound foam provide varying levels of energy return in specific targeted areas. Ortholite’s patented antimicrobial property is built right into the foam and fights against the buildup of odor-causing fungus and bacteria. Upgrade your stock insoles! 3 different foam densities providing comfort, support and varying levels of energy return. 1 Pair of Level Up Insoles