Spenco Propel + Carbon Performance Insole

Spenco® Propel™ + Carbon Performance Insoles deliver explosiveness with each foot strike. Turn your everyday trainer into an elite race-ready shoe with the Spenco® Propel™ + Carbon insole. Designed by biomechanical experts, this insole features a carbon plate for explosiveness with each foot strike and INergy™ Foam for next-level energy efficiency.  Features • Carbon Plate provides forward propulsion and explosiveness with each foot strike• Responsive INergy™ Foam cushioning creates next-level energy efficiency• Contoured and supportive heel cup• Metatarsal pad for ideal foot alignment• Engineered forefoot launch pad• Includes 1 pair of insoles