The name stands for toughness and durability. These full grain leather boots are meant for your tough work day. This boot is not only oil and slip resistant but comes with an ASTM rated steel toe. They feature a fully lined interior that wicks away moisture with its performance fabric. The removable insole is perfect for adding orthotics and other footwear accessories. The outsole is an oil resistant rubber that is made with welted technology. The padded collar is perfect for keeping your feet comfortable all day.