The elite ASICS® Japan Lite-Ning™ 4 track spike features a new Discrete Eyelet upper with stretch tongue and vamp for a customized fit and feel. Ideal for sprint distances up to 400 meters and 110-meter hurdles. Synthetic leather upper is light, comfortable and breathable to enhance performance and fit. Ecsaine collar lining creates comfortable, soft fit and allows a sockless option. Full-length Pebax® spike plate maximizes performance by enhancing natural foot movement through optimized flexibility. Removable spikes allow the athlete to customize spike configuration. Non-removable insole. Includes 8mm compression spikes and a wrench. Wt. 5.6 oz.