evo.com | Smartwool Ski Socks > The Smartwool PhD Ski Ultra Light Socks provide you with the comfort and reliability of lightweight merino wool for warmer days, or those who don't want cushioning to get between them and their edging. With Smartwool's 4 degree Elite Fit System and Reliawool Technology, you're getting a sock that will stay up and protect your feet for seasons of abuse, where others slide into your boot and break down after too many trips through the washing machine. Do your feet a favor and throw on a pair of Smartwool Ultra Light ski socks. Over The Calf 14 Inch overall height Patent Pending ReliaWool Technology Smartwool included this longer lasting protection in high impact areas to keep feet comfortable. 44% nylon 53% Merino wool 4 Degree(TM) Elite Fit System This new technology uses two elastics for greater stretch and recovery to keep your socks in place. | Smartwool PhD Ski Ultra Light Socks - X-Large in Black | Nylon/Wool