The momentum continues. Building on the success of the original DynaFlyte shoe, our speed-fueling update is ready to jet. ASICS DynaFlyte™ 2 model presses repeat on full-length FlyteFoam® midsole technology and adds ""wings"" in the form of a new Adapt Mesh™ upper, for increased breathability, decreased overall weight and reduced chance of blisters. DynaFlyte™ 2 model is here to give you superb, responsive cushioning with a lightness you might never have thought possible. Prepare to accelerate. Weight: 8.9 oz. Heel Height: 20mm. Forefoot Height: 12mm.