UA Brigade XC 2 Track Spikes Breathable engineered mesh upper with rubberized 3D print for added structure & support where you need it. EVA sockliner provides extra cushioning & rebound. Charged Cushioning® midsole uses compression molded foam for ultimate responsiveness & durability. Ultra-strong, ultra-lightweight Pebax® plate strategically placed in forefoot for explosive takeoffs. Michelin® Wild Gripper rubber outsole rubber uses unique traction lugs for grip & traction on any terrain.