*The combat-inspired work boot Striker® Bolt Side-Zip is the ultimate in durability and performance *Durable and polishable PU-coated leather and nylon upper *GORE-TEX waterproof breathable lining *Semi-locking YKK® side-zip with a lace garage *Cushioning PU footbed *TERRA FORCE® NEXT & trade; platform combines an internal and external shank system which helps to provide arch support and torsion control *Vibram® SPE midsole for maximum rebound comfort and support *Bi-Fit stability board for underfoot comfort reduced weight and added forefoot flex *Vibram® Striker® Bolt outsole is slip resistant and offers maximum surface contact while gripping on and off pavement