The Men's Euro Hiker is crafted with durable Premium Timberland® leather and mesh fabric, featuring a ReBOTL™ fabric lining containing at least 50% recycled plastic. It's engineered to support your feet from scenic routes to city streets, combining an EVA footbed and midsole for cushioning and a steel shank for arch support with a rubber outsole built for traction. By purchasing this product, you are supporting Leather Working Group certified tanneries https://www.leatherworkinggroup.com/ The ReBOTL™ material used in Timberland® apparel contains at least 40% recycled PET (recycled polyethylene terephthalate, the stuff plastic bottles are made of). The ReBOTL™ material used in Timberland® footwear and accessories contains at least 50% recycled PET. (Excepting trace materials)