Designed for maximum comfort, the Pulley 10-inch Waterproof Met Guard Composite Toe boot boasts the J-Flex Comfort System which provides support for your feet during extended periods of wear. The heat resisting rubber outsole delivers top-notch performance and stability on a variety of work surfaces. In addition, this boot comes equipped with a MetGuard featuring a thermal plastic urethane shield made with XRD Impact Protection technology that covers the composite toe box and extends to the top of the instep, ensuring armor-like protection for your metatarsals. This boot meets ASTM 2413 Safety Footwear Standards.