Muck Boots arctic sport.... the king of Muck Boots, these boots are the warmest of the warm good down to -40... amazing for any outdoor activity.... snowmobiling, snowblowing, sled riding with the kids and working outside in the cold. One of a kind, the Muck Arctic Sport boot.
• Comfort range of -40° F to 60°F
• Added toe protection with a wrap-up bumper
• 2mm thermal foam underlay added to the instep area for additional warmth
• 5mm CR flex-foam bootie with four-way stretch nylon, 100% waterproof, lightweight and flexible
• waterproof all the way up to the top