The Mt. Vernon is a hard-working, high-performance boot meant for medium to heavy duty. It's waterproof, and the non-slip outsole stands up to the slickest work sites. Asymmetrical steel-toe protection ensures an anatomically correct fit, and the resilient, shock-absorbing midsole provides comfort that doesn't quit. Assembled with pride in our Portland, Oregon factory, with materials from around the world. MEETS ASTM F1677-96 MARK II NON-SLIP TESTING STANDARDS and ASTM F2412-11 AND F2413-11 M I/75 C/75 EH STANDARDS. CARE Instructions: Gently brush the shoe with a soft bristle brush or hand towel to remove loose dirt and debris. Stains can be treated by lightly rubbing a gum eraser in a circular motion over the location and lightly brushing afterwards. Tough stains can be treated with a mixture of water and a little vinegar on a damp cloth. This process may cause slight discoloration to the area