Breathable, lightweight mesh upper reinforced with Flex Gear for durability. EVA foam midsole for comfort, shock absorption, and cushioning. 3/4-length Pebax six-spike plate for the traction needed to reach high speeds. Drop-in Sharkskin plate in the heel and forefoot adds durable traction. Includes 1/4" pyramid spikes and a wrench. Wt. 3.7 oz.