Powerstep Pinnacle insoles are desinged to help those who suffer from over-pronation (mild to moderate), Plantar Fasciitis, foot, arch, and heel pain, calluses, hammertoe, claw toe, bunions, neuoroma, ankle, and knee pain. They can be used in athletic, dress, and casual shoes. Power Pinnacle insoles offer unsurpassed confort and relief from painful medical foot conditions. They provide the perfect balance of foot control, spring, and offer long-life cushioning. The four-step system provides prescription-like foot suuport and helps control foot odor.