Combination Action nubuck leather and synthetic uppers. - Molded TPR underlays for ollie protection and extra reinforcement. - Direct-injection welded quarter. - Contrast molded TPR heel panel. - Plush collar for added comfort. - Soft fabric lining for a great in-shoe feel. - Nitrocel BRW Airbag sole features a one-piece, ultralow profile cell that extends from heel to toe. - S-Trac tread pattern provides maximum energy transfer and shock absorption, as well as unmatched grip and flexibility.