SmartWool Men's PhD Ski Light Elite Pattern Socks 55% Merino Wool, 42% Nylon, 3% Elastane Knit in USA 200 needle construction provides high-density, low-profile cushioning Virtually Seamless toe 14" overall height Style: SW001329 Care: Machine Wash Warm Gentle Cycle. Do Not Bleach. Tumble Dry Low. Do Not Iron. Do Not Dry Clean.