This men\\\'s hiker is made with an upper in synthetic leather and eco-conscious ReBOTL fabric mesh. The durable lining is made with the same ReBOTL material, which contains a minimum of 50% recycled plastic, as does the built-in TimberDry waterproof membrane. Our TimberGrip technology offers superior traction on a range of terrains, all using eco-friendly materials such as responsibly sourced natural rubber and resins created from wood pulp & paper waste. Size 11.5