Expertly constructed for your safety and comfort, these Ariat Treadfast boots are waterproof with a steel toe cap that protects against falling and heavy rolling objects. It has a full grain leather upper with a 4LR lightweight stabilizing shank. Recycled polyester lining, a removable cushioning insole, and a padded collar provide all-day comfort. These boots are built to perform all kinds of work, from farm to ranch to warehouse. Treadfast 6 Waterproof Steel Toe Work Boot. An all-season, all-purpose work boot solidly built to match your work ethic. Designed for comfort and protection for long hours on your feet, the Treadfast features waterproof construction, multi-surface traction, and a reinforced safety toe.