Ruggedly constructed Gravel Gear® waterproof 6in. steel toe work boot provides all-day comfort and safety on the job, even in wet weather conditions. Upper is made of waterproof, butter-soft full-grain leather for comfort and durability. A waterproof membrane envelops the foot for 100% waterproof protection, while a mesh lining wicks out moisture for comfort. A PK mesh-lined removable polyurethane insole has extra cushion in the heel for hours of comfort. Flexion welt construction provides the stability of a traditional welt without loss of flexibility. Boot is fitted with ASTM approved steel toe for protection. Dual-density outsole has a layer of polyurethane covered by a slip- and oil-resistant rubber outer layer for the ultimate in grip and comfort. A rubber diamond-tread heel counter and abrasion-resistant toe bumper provide protection and lasting wear. Boot also has padded tongue and collar for comfort, a 3/4 gusset to lock out water and debris, and a rear pull-on tab.