The Smartwool Ski Targeted Cushion Extra Stretch OTC Sock provides warmth, breathability, and the targeted cushioning we need to ride first chair to last. The Merino wool blend features natural moisture-wicking properties to keep our feet dry and comfortable, while Indestructawool technology and Shred Shield technology enhance durability to reduce wear and tear. These over-the-calf socks also feature extra stretch in the calf to accommodate those with larger calf muscles, as well as the 4 Degree elite fit system for a performance oriented fit.