The Chore Classic Wide Calf CSA Steel Toe Rubber Boots for Men from The Original Muck Boot Company offers superior work protection with a perfect fit. Adding an expanded fit and advanced protection to the time-tested waterproof durability of the Chore, these boots make a great choice for homeowners, construction workers, ranch hands, and others who often find themselves working in wet, muddy conditions. These durable work boots surround a 5mm CR Flex-Foam neoprene bootie upper with easy-to-clean rubber overlays for waterproof protection that stands up to hard work. Built to last, these boots feature triple rubber reinforcement over the toes and quadruple-layer reinforcement over the heel. Built to deliver a comfortable fit, the Chore Classic Wide Calf CSA Steel Toe Rubber Boots adds an adjustable waterproof calf gusset that extends the top of the boot up to 5" to ensure a perfect fit around the calf. Meeting ASTM F2413-11 M 1/75 EH MT/75 and CSA Grade 1 workplace safety standards, this safety-minded rubber boot features steel toe protection with a non-metallic puncture-resistant plate underfoot and electric shock-resistant(ESR)-rated outsoles. Breathable mesh linings inside the boot wick away humidity and sweat and allow air circulation through the boot for greater comfort, especially as exertion levels rise. Rolldown shaft allows further ability to adjust to hot conditions. The compression-resistant molded polyurethane footbeds work with the boots' puncture-resistant midsoles, reinforced arch support, and rigid steel shanks to cushion, support, and stabilize feet and legs all day long. Quick cleaning outsoles shed mud and debris to deliver solid footing, even on slick work surfaces. Comfort rated from sub-freezing to 65F. Average height: 16.1". Average weight: 2.75 lbs.Manufacturer style #: MCXFSTL. Durable and waterproof rubber boots with an expanded fit and advanced protection Meets ASTM F2413-11 M 1/75 EH MT/75 and CSA Grade 1 workplace safety standards Waterproof 5mm CR Flex-Foam neoprene bootie uppers with easy-to-clean rubber overlays Triple reinforcement over toes and 4-layer reinforcement over the heels Adjustable waterproof calf gusset - 5" of adjustment ensures a perfect fit around the calf Steel toe protection Non-metallic puncture-resistant plate in the midsoles ESR-rated outsoles Breathable mesh linings Rolldown shaft - adjust to hot conditions Compression-resistant molded polyurethane footbeds Puncture-resistant midsoles Reinforced arch support Rigid steel shanks Quick cleaning outsoles Comfort range of sub-freezing to 65F