Design: Engineered jacquard mesh upper delivers breathable comfort Deep active foot frame enhanced with wrap-around side walls H-Frame(TM) technology designed to help stabilize your stride Early stage MetaRocker(TM) for smoother, consistent heel-to-toe transitions Durability & Traction: Durabrasion rubber outsole Multi-directional 4mm lugs designed for versatile traction on limitless terrain Additional Details: Weight: 12.1 Oz (342g) Heel-to-toe drop: 5mm