Reebok Premier Zigfuel Zigtech Mens Running Shoes Synthetic Reebok's most technically advanced running and training shoe, offering style, comfort, flexibility and durability Lightweight, breathable mesh upper with synthetic overlays for comfort and durability Seamless SmoothFit upper for an irritation-free fit Removable Ortholite foam sock liner offers comfort Unique Zig-Zag shaped outsole reduces wear and tear on key leg muscles and creates a lightweight and flexible ride