The Mens Large Size Wigwam 40 Below II Black Wool Boot Socks fit up to size 17 so those with 2 Big Feet can reek the benefits on a hikes and excursions too. In warm climates these Big Mens Wool Boot Socks keep Extra Large Feet cool. These Plus Size Wool Boot Socks also keep feet warm in icy cold climates as cold as 40 Below II too.  Adrian (the founder of XLfeet.com) lives in the Minneapolis, St Paul area and says that when combined with his Bogs Boots, these Large Wool Black Boot Socks Keep his size 16 feet warm, dry, and fully cushioned in Minnesota's extreme cold weather conditions. Weather Tailgating at a Vikings Packers Game, or climbing Mount Everest, American Made Extra Large Wool Boot Socks for men by Wigwam are the best of the best. Wool Warm Full Cushion Durable Wigwam 40 Below II - Black Wool Boot Socks - Single Pair - WILL NOT FIT WIDE FEET/CALF