From Nike website - The Alpha Menace Strong offers ideal traction in the trenches, regardless of weather or wayward field conditions. An all-new Alpha plate made of mixed sticky rubber combines with soft foam to help unleash your wrath at the snap or wherever there is ground to be staked.
Benefits New Alpha plate is made of mixed sticky rubber in the forefoot and heel for extra traction. Rubber overlays in the forefoot, specifically the toes, offer support. Product Details Synthetic leather on upper Mesh collar and tongue for breathability Foam midsole Shown: White/Hyper Royal/Dark Smoke Grey/Black Style: II5139-101