Built to handle any season with style and comfort in mind, the Men's Timberland® Originals Mid Boot is firmly rooted in Timberland's heritage for craftsmanship. It's made with Premium Timberland® leather and a ReBOTL™ lining containing at least 50% recycled plastic, featuring a steel shank for arch support and an EVA midsole for cushioning. Complete with a rugged rubber outsole to help promote confident 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)