The Arctic Sport Mid is Muck's mid-height boot for extreme winter weather conditions. These boots step up the warmth factor with soft fleece lining and a 5mm neoprene inner boot and2mm thermal foam underlay for ultimate warmth in harsh conditions. The stretch-fit top-line binding keeps the boots snug to your legs to keep cold air out and warm air in, and provides the perfect fit for wide calves. 

• 100% Waterproof
• Fully lined with 5mm CR Flex-Foam neoprene, 100% waterproof with exceptional comfort, flexibility, shock absorption and heat retention properties; adjusts to the contours of your foot to resist blisters and chafing
• Fleece lining for additional warmth
• 2mm thermal foam under the footbed for extra warmth
• Lightweight, cushioned EVA midsole for added comfort
• MS-1 molded outsole is rugged, aggressive and durable for maximum protection and stability
• Pull-tab for easy on and off
• Estimated height: 33cm/ 13"
• Estimated max calf circumference: 41cm/ 16.1"
• Comfort Range: -40°F to 40°F / -40°C to 4°C
• Style # ASM-000A