Released early 2015 in two energetic colors, the Flyknit Racer 'Bright Crimson' is a high-visibility pair with a lightweight, breathable construction. The Flyknit upper has sections of a wider weave for more ventilation where it's needed, and strong Flywire cables connect from the laces to the base of the foot for a customized fit and stability. Designed for short road races, the shoe's Phylon foam midsole and rubber outsole lugs provide durable cushioning.