Fit for the world's fastest, the Maxfly 2 is back and bolder than ever. Designed for the 100 meters to 400 meters (hurdle events too), it combines an ultra-aggressive feel with the responsiveness of an Air Zoom unit to propel the speediest sprinters on the planet. This pair steps it up with shimmery accents, letting you release your style and your speed. Flyweave Construction - Nike Flyweave construction on the upper provides a secure and conforming fit for various foot shapes. It's accented with a removable gold chain and charm. Carbon Flyplate - The carbon fiber Flyplate's shape and stiffness help keep you on your toes and minimize deceleration. Zoom, Zoom - The forefoot Air Zoom unit has two chambers to give you a propulsive feel and stability from takeoff to the tape. What's New? - Lighter, more responsive than the Maxfly. Flyplate's shape and stiffness give you a propulsive feel. Middle spike removed from Maxfly and elevated platform on big-toe side help spikes feel more stable