The enormous impact forces generated during skateboarding push pressures underneath the foot to the limits and can cause over-stress injuries. With the latest cutting-edge research in hand, STI designers and engineers created STI FOAM™ insoles to help relieve these pressures and provide superior comfort to your feet. STI’s research was able to specify exactly how much force and pressure needed to be absorbed and told them precisely where to place key support elements to spare the delicate structures of the foot. But that’s not enough. They also tested dozens of materials to find those unique systems that absorb the most pressure and maintain their special cushioning properties for hours upon hours of skating. STI FOAM™ insoles can be found exclusively in all Sole Technology footwear products in three distinct styles. STI Level 0 insoles are our basic entry level insole containing a flat sheet of STI FOAM™. STI Level 1 insoles combine STI FOAM™ with an arch pad for added midfoot support and comfort. STI Level 2 insoles combine STI FOAM™ with a heel cup that wraps around the back of the insole to provide better support and stability for the rear of the foot.
