The Muck Men's Mossy Oak Break-Up Country Fieldblazer Classic Tall Boots delivers rugged all-weather performance for field, trail, and utility use. 5mm neoprene bootie adds flexible comfort and performance, while breathable mesh lining improves airflow inside the boot. bioDEWIX footbed topcover uses NZYM for odor and moisture control; ASTM F2892-18 EH safety rating; Self-cleaning calendered outsole grips mud, snow, and dirt.