The Muck Boots Mens Black Gray Arctic Excursion is an all-purpose outdoor boot. Whether you're shoveling the driveway or walking to work, the Arctic Excursion is an ideal all-purpose, winter boot. Easy to pull on for cold, wet, ice or snow, this stylish mid-height boot will keep you warm and comfortable even in harsh conditions. Comfort Range: -40 degrees F-40 degrees F.