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
Carbon Plate provides forward propulsion and explosiveness with each foot strike
Responsive Energy Foam cushioning creates next-level energy efficiency
