The Nike Zoom Fly 6 'Bright Crimson Lime Blast Mint Foam Cave Purple' is designed for enhanced performance. It features ZoomX foam, Nike's lightest and most durable, for maximum energy return with every step. A full-length carbon fiber plate boosts efficiency and responsiveness. The thin rubber tread is engineered for lightness and grip on the road. Closure: lacing. Toe type: round toe.