The adidas adiZero Cadence 2 track spike is made for the 1,500-10,000 meters and steeplechase. Air mesh upper provides maximum ventilation. Lightweight microfiber synthetic offers a soft, glove-like fit. Molded EVA midsole adds lightweight performance. Flex grooves deliver optimum forefoot flexibility. Pebax® plate gives lightweight performance and durability. Replaceable spikes. Includes 3/8" compression spikes and a wrench. Wt. 5.3 oz.