The support and speed you need to finish first.．This lightweight, versatile track spike has a single-layer mesh upper and midfoot overlays that support the foot and promise an exceptional fit. ．Compression-molded Phylon™ midsole provides enough responsive cushioning to ensure a smooth run. ．The 3/4-length rubber outsole and six-spiked Pebax® plate promise reliable traction. ．Includes 1/4" pyramid spikes and a wrench. ．Wt. 6.4 oz.