Muck Boots Women's Muckster II Ankle Boots feature premium Muck Boot comfort for any condition. 4mm CR Flex-Foam booties with nylon overlays offer waterproof performance, superior flexibility and a four-way-stretch fit for all-day comfort. Breathable Airmesh™ linings pull moisture away from feet. Shock-absorbing insoles cushion every step. High-traction, self-cleaning rubber outsoles grip slippery surfaces. Imported.