Men's Muck Boots Muck Pathfinder XF Work Boots Purpose-built for high-performance protection, this waterproof work boot blends rugged durability with adaptive comfort. The neoprene bootie and stretch-fit topline keep warmth in and cold out, while the breathable mesh lining helps regulate moisture inside. A composite toe provides non-metallic safety without added weight, and the modified rubber outsole sheds debris fast for steady footing. Reinforced at the heel and toe, and featuring flex notches for ease of movement, this boot is ready for the toughest tasks.