Caterpillar Diagnostic Hi Steel Toe - Men's Work Boot 。The Caterpillar Diagnostic Hi Work Boot is a durable and reliable option for men in size 11. With a waterproof and Thinsulate design, it is perfect for those working in cold and wet conditions. Preowned / Good Condition (See photos) The steel toe provides maximum protection against electrical hazards, meeting safety standards for electrical hazard (EH) footwear. Made in Vietnam, this medium-width boot combines quality craftsmanship with safety features for a secure and comfortable fit. Ideal for those in need of personal protective equipment for industrial work environments.