Part of the Limited Edition Charley Harper collection, the SmartWool Men's Charley Harper Bathurst Inlet PhD Ski Medium Socks star the roaming Caribou of the Arctic. Featuring a medium-cushioned shin and foot, the Bathurst Inlet offers all the performance benefits of SmartWool's PhD ski socks with artful style. With the 4 Degree elite fit system for a dialed fit, ReliaWool technology for durability and all the comfort and performance benefits of Merino. Features: Patented ReliaWool technology in high impact areas provides longer lasting protection to keep feet comfortableFlat knit durable toe seam 14" overall height Sock Height: Over the Calf Machine Washable Knit in USA of Imported Yarn: 61% Merino Wool/37% Nylon/ 2% ElastaneAvailable in Men's Size Large only (Shoe Size Reference): L: 9-11.5