The Spenco Propel + Carbon Performance Shoe Insoles turn your everyday trainer into an elite, race-ready shoe! These insoles are designed by biomechanical experts and feature a carbon plate for forward propulsion and explosiveness with each foot strike. The INergy foam technology provides next-level energy efficiency. It also has a contoured, supportive heel cup and a metatarsal pad for ideal foot alignment.

• 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
• Sold in pairs