Ready for anything. The Iowa boot is constructed from Turby Split — a combination of hardwearing leather and tough nylon. The boot sits on top of a Tract GripWair sole, giving it added traction and durability. The perfect boot for winter. Turby Split leather has been rubbed to give it a nubuck effect and features a fine geometric embossing. Wipe with damp cloth only Our unique GripWair sole design provides extra traction on slippery surfaces