ASICS Men's Turbo Phantom 3 Track and Field Shoe 100% Synthetic and mesh Rubber sole Full length Pebax Spike Plate maximizes performance by enhancing natural foot movement through optimized flexibility SharkDuo outsole provides increased traction on various track surfaces Asymmetrical upper construction is designed to hold the foot securely on the platform during turns on the track Synthetic leather and mesh Upper is lightweight, comfortable and breathable, enhancing performance and fit Inner Lock Lacing System has asymmetrical internal strapsthat comfortably wrap and secure the foot on the platform of the shoe, improving fit and stability