Muck redesigned the Muckmaster with an adjustable, waterproof, extended fit gusset for the perfect fit around the calf. The classic Muck neoprene adjusts to the unique contours of your foot while the mesh lining lets your feet breathe, making these commercial-grade work boots flexible, 100% waterproof, and comfortable in all weather conditions.

• 100% waterproof
• 5mm CR Flex-foam neoprene liner
• 2mm thermal foam under footbed
• Lightweight midsole
• Reflective pull-tab for easy on/off