Take the Engineered Mesh Construction, for example, it uses a running-shoe like structure to work with the Macroblade Frame to give you enhanced ventilation while also improving comfort and hold. And the Twinblade Alu Frame uses a metal alloy to enhance efficiency while reducing weight. The difference is this skate uses easier to control 80mm Rollerblade Wheels, giving you easier access to acceleration while the 82a Durometer construction enhances traction while smoothing out rougher surfaces.