Superfeet Run Support High Arch V2 Insoles are thin, light, and structured insoles. They are designed with EVOlyte(TM) carbon fiber-reinforced cap and two layers of Aerospring(TM) Rebound foam, combining comfortable cushioning with responsive energy return in every step. Best for slim, tighter-fitting athletic footwear, these insoles are an excellent choice for runners who need High support and comfortable underfoot cushioning. Features: High support arch EVOLyte(TM) carbon fiber cap Aerospring(TM) Rebound foam for a comfortable ride Heel cup cradles your fat pad for natural shock absorption Mositurewick(TM) top cover Pair of insoles