Great for everything from speed training to marathon racing, the light, functional adidas adiZero Mana racing/training flat makes every gram count. Perforated upper adds superior breathability. Torsion® System gives midfoot integrity. adiPRENE® insert in heel offers comfort and shock absorption. Midfoot second density inserts helps reduce overpronation. adiPRENE®+ insert aids forefoot propulsion and efficiency. Lightweight, cushioning compound provides long-lasting comfort. adiWEAR® outsole delivers best durability in high wear areas. Wt. 7.8 oz.