100% Waterproof, 100% Muckproof; 5mm neoprene bootie for comfort and performance; Breathable mesh sandwich lining improves air circulation; Self-cleaning calendered outsole excels in mud, snow and dirt; Extra layers of rubber for protection and durability; Double heel and toe reinforcement; bioDEWIX dry footbed insert topcover with NZYM for odor control and moisture management; ASTM F2892-18 EH