The Philadelphia 6 Waterproof Composite Toe Work Boot in Cascade Brown/Black from Keen.The KEEN® Mens Philadelphia 6 Waterproof work boots take hard work to a new level. These shoes can get you through the longest shifts with a carbon-fiber toe, non-slip outsole and crazy comfort.Meets ASTM F2913-17 SATRA Non-Slip TestingLeft and right asymmetrical non-metallic carbon fiber toes offer an unobtrusive fit and are fifteen percent lighter than steel and meet ASTM F2412-11 and F2413-11 I/75 and C/75 StandardsElectrical hazard provides a secondar