Legend Trainer 'Signal Blue'

Five times stronger than steel, Nike uses Vectran material to create the Flywire upper seen on multiple Swoosh sports shoes. First revealed in 2008, Flywire technology provides a stable and flexible fit, while keeping the shoe lightweight and comfortable. Implementing strategically-placed Flywire materials on the upper of the Legend Trainer 'Signal Blue' eliminates the need for a structured overlay and promotes optimal training performance.