The Men's Mt. Maddsen Waterproof Hiking Boot is built for trail performance and comfort. A TimberDry™ waterproof membrane and waterproof Premium Timberland® leather upper help keep feet dry, while a fully gusseted tongue offers protection from debris. Inside, there's a ReBOTL™ fabric lining containing at least 50% recycled plastic. Cushioning comes from an anti-fatigue removable footbed and compression-molded EVA midsole. A classic rubber lug outsole promotes traction, whether you're trekking on slick roots or rocky switchbacks. 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) A comfort system, adopted from Timberland PRO, designed with shock-absorbing, geometrical technology that returns energy back to the foot to deliver all-day support and comfort. A waterproof membrane made with at least 50% recycled plastic. Our waterproof footwear incorporates a variety of advanced waterproofing materials, treatments and processes. We start with waterproof leathers that are sealed as part of the tanning process; we then either seam-seal the footwear or use an internal waterproof breathable membrane to help feet stay dry. Tongues and zippers treated with durable water resistant coatings utilize integrated gussets, to further deter water entry.