These Rambler all-weather boots are the perfect way to stay protected from the elements High-quality, waterproof rubber upper Molded stretch neoprene collar Lugged, slip-resistant rubber outsole with gripping teeth traction 5mm Neoprene insulation Molded PU footbed WarmBuilt for up to -30 degrees Did you know rubber comes from trees? The process of making handmade boots involves mixing limestone and rubber to give the footwear its form. It’s natural for quality rubber to develop a white film, called blooming, and it’s easy to clean. Reinforced rubber toe and mud guard Soft fleece lining Western Chief Men's Rambler Neoprene Mid Boot