One of the most versatile styles these boots have been updated with a new height and outsole pattern. The Muckster II Ankle is ideal for any chore or task where there is mud slush or rain. Easy to slip-on and quick to kick-off makes it a great leave-by-the-back-door boot. Best of all they feature 4mm Neoprene and the traditional Muck Airmesh lining that allows for breathability. Slip them on and you will always feel dry and comfortable. 4mm CR Flex-Foam. Breathable Airmesh Lining. Comfort Topline. High Traction Rubber Outsole. 100% Waterproof. Comfort Range- 0 to 65 F.