NEW Nike Zoom Rival S 9 Electric Green Track Spikes Unisex Shoes Size 11 mens sizing, 12.5 womens. Color : Electric Green New, no box. Spikes, key ARE NOT included. Designed with the sprinter in mind, the Nike Zoom Rival S 9 Unisex Track Spike is ideal for short distances, hurdles and jumping events. A soft, foot-conforming sockliner provides incredible comfort, while a rigid plate extends under the arch and includes strategic spike receptacles for maximum power, speed and traction. Nike racing. Sprint. High jump. Long jump. Cross country.