Sorbothane ULTRA SOLE is re-engineered to better protect the feet of runners and walkers seeking extra cushioning and energy return. Now with 40% more sorbothane, Ultra Sole insoles selflessly bear the brunt of the impact from each stride and instantaneously recover for the next. An enhanced profile contours to all foot shapes, offering support and encouraging proper pronation. Fits properly into running shoes. The result is high-performance support, foot strike protection, flexibility, and cushioned comfort that sidelines pain, not the athlete.