Therersquos a reason why enertor is the only insole worn by usain bolt designed by leading podiatrists and the only insole to use patented d3o smart material enertor insoles offer the most advanced protection yet against injuries engineered by the experts enertor insoles are proven to help reduce foot and heel pain for over 91 of wearers a recent study showed that our insoles helped to heal over 75 of those suffering from plantar fasciitis unrivalled shock absorp