Lightweight cushioning and support to keep you running at high velocity. Breathable mesh upper with seamless overlays for structure and support. Molded footbed conforms to your foot's shape, while adjustable heel lock-down strap holds you in for a secure fit. Full-length Micro G foam midsole turns cushioned landings into explosive takeoffs, while flex grooves in the forefoot encourage a natural stride. Strategically placed rubber in high-wear areas of the outsole for long-lasting durability. Wt. 8.9 oz.