The Carolina 16" Mud Jumper is tougher than your average rain boot. Engineered for safety and comfort with a 6mm neoprene and rubber combination upper, this boot is ready to tackle the workday through any element. This boot has been electrical hazard safety rated and features a steel safety toe cap as well as offers a puncture-resistant insole. What's equally as important as safety in the workplace? Comfort. The Mud Jumper provides all-day comfort with an EVA cushioned insole as well as an oil and slip-resistant rubber outsole to keep you on your toes throughout the day.