Sorbothane's UltraSole is a high performance insole that provides ultra shock absorption (up to 94.7% of impact shock) and amazing energy return for injury prevention. UltraSole™ has been engineered to better protect the feet of runners and walkers seeking extra cushioning and energy return. Now with 40% more Sorbothane®, UltraSole™ insoles selflessly bear the brunt of impact from each stride and instantaneously recover for the next. An enhanced profile contours to all foot shapes, offering support and encouraging proper pronation. runner's last properly fits running shoes. The result is high-performance support, foot strike protection, flexibility and cushioned comfort that sidelines pain, not the athlete. Sorbothane insoles are recommended by doctors, sports medicine specialists and professional trainers for athletes of every type and level. Sorbothane insoles are your best defense against foot pain, back pain and impact related injuries such as Achilles tendonitis, runner's knee and shin spints. *Recipient of the American Podiatric Medical Association Seal of Acceptance, which recognizes products that have been found beneficial to foot health, and of significant value when used i nt color=navy>.