Rugged MXT outsole is designed with high sidewalls for superior support and protection around the sides, heel, and toe areas; Aggressive tread pattern found on the natural rubber delivers exceptional traction on all terrain conditions; Steel shank for added arch support; Designed and built to be 100% waterproof from top to bottom; 5mm Densoprene Foam Insulated Bootie keeps out the cold and wet, keeps in the warm and dry; Hydrokote Water-Repellent - No more soggy boots, water rolls off and dries in seconds; 4-Way Stretch Breathable Airmesh Lining moves the air to keep your feet dry and comfortable; Roll Down Calf Pipe - Roll down the top to tuck in your pant leg or vent in warm temperatures; Only genuine hand-laid rubber. No PVC, PU, or TPR; Reinforced tuck board with rigid shanks for added stability