Go ahead, put your foot in it – rain, mud, slush, manure. 100% waterproof Muck® Apex Boots lock out all the wet stuff you step into AND deliver the agility you demand for high-endurance treks. They’re the lightest outdoor boot that Muck makes, so you can cover ground fast. And they’re full-on comfortable, thanks to a 3mm CR Flex-Foam neoprene liner that bends with every step, absorbs shock and holds in heat. A breathable mesh lining keeps fresh air moving around your feet. The memory foam in the anti-fatigue footbed adapts to the contours of your foot and fights odor. Underneath it all, an aggressive lug sole is equally at home on loose rocky terrain, frozen ground and – of course – MUCK.