Imitated but not beaten, the Smartwool PhD Targeted Cushion ski sock should be the staple in every skier's sock quiver. The secret to all-day comfort lies in the 4 Degree® elite fit system, which keeps the sock snugly in place over the top of your foot, whilst the wool blend material keeps your feet warm and dry all day long. These 'extra stretch' model of socks have additional stretch around the calf to help fit around larger and lower calf shapes.  Skiers with performance or comfort fitting ski boot will equally love the way this sock fits and feels, with slight cushioning on the shin, heel and forefoot to provide all-day comfort. Features: Indestructawool™ technology features a wool-based, patent-pending yarn and construction method for exceptional durability and comfort. 4 Degree® elite fit system uses two elastics for greater stretch and recovery to keep the sock in place Mesh ventilation zones designed specifically to provide optimum temperature regulation and moisture management 200 needle construction provides highest knit density while maintaining ultra lightweight Virtually Seamless™ toe 14” overall height 56% Merino Wool, 42% Nylon, 2% Elastane Height: Over-the-Calf Cushioning: Targeted Cushion Shin & Foot Smartwool PhD Ski Targeted Cushion Extra Stretch Ski Socks