For demanding jobs in mud, cold, and standing water, the Muck Women's Muckster II Mid Boots combines waterproof coverage with work-ready support. 4mm Neoprene Bootie for comfort and performance, while breathable mesh lining improves airflow inside the boot. bioDEWIX footbed topcover uses NZYM for odor and moisture control; Self Cleaning Rubber Outsole Built for the Lawn and Garden.