adidas adiZero Avanti 2 - Men's The adidas adiZero Avanti 2 track spike is made for the 800-10,000 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 3/16" pyramid spikes and a wrench. Wt. 4.9 oz.