When opportunity knocks you meet it face-to-face. Sometimes that means slipping on your Reebok Zigwild TR 2 Mens Running Shoes in Gravel / Black and running out the door. You leave the footfall cushioning to the responsive midsole and the tricky terrain to the lugs, so you can focus soley on the task at hand. Synthetic and mesh upper for durable comfort and support. Low-cut design for ankle mobility and quicker foot transitions. ZigTech midsole for superior cushioning and shock absorption. StableFit molded memory foam at the heel for a secure fit. Carbon rubber on the heel strike for durable traction. Removable PU sockliner for cushioning that accommodates orthotics. Color: Gravel / Black / Pure Silver / Rivet Grey / White.