The Muck Men's Mossy Oak Bottomland Fieldblazer Tall Boots is built for wet, cold, and uneven terrain where dependable protection matters. 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.