Timberland Men's MT Abram Mid Boot Full-grain leather Rugged, waterproof, insulated boots that are designed to take hours outdoors in rough, cold conditions while keeping your feet warm and dry. Premium full-grain waterproof leather. Leather is from a tannery rated Silver by the Leather Working Group for its water, energy and waste management practices. Gusseted tongue to keep out debris. Rustproof D-ring hardware. Waterproof membrane keeps feet dry in any weather. 100% PET fleece lining is made entirely from recycled plastic bottles. 400 grams of PrimaLoft&reg; insulation crafted from synthetic fibers including a minimum of 50% PET (from recycled plastic bottles) that form a dynamic insulation structure. These compression-resistant fabrics maintain loft and retain warmth, even when wet. Shock-absorbing EVA midsole for cushioning. Rubber lug outsole is made with 34% recycled rubb