The Mizuno Wave Catalyst 2 is a support shoe with a need for speed. This responsive performance trainer is built with swift feet in mind, but that doesn’t mean it lacks cushioning or support. A soft U4icX strobel lasting board adds cushion in all the right places. Mizuno’s signature Fan Wave offers structural guidance and shock absorption with every heel strike, while the new U4ic compound gives the midsole responsiveness that’s built to last. With an improved Dynamotion fit, this shoe moves with your foot for a secure-yet-flexible ride. New forefoot mesh adds depth and allows for maximum ventilation. Cushion. Ventilation. Swiftness. There’s nothing runners wouldn’t love about the latest Catalyst.