ISOFIT stretch mesh upper with FLEXFILM overlays for lightweight support. Padded tongue and collar. Removable foam insole for an adjustable fit. EVA midsole cushions and absorbs impact. Rigid, full-length 11-spike plate returns energy for powerful speed and take-off. XT-600 rubber for durable grip on the track. Includes 3/8" compression tiered spikes and a wrench.