SmartWool Women's Margarita 61% Merino Wool, 37% Nylon, 2% Elastane Made in USA or Imported Ultra Light Cushion: Non-cushioned for maximum performance in close-fitting shoes Sock Height: Crew Knit in USA of Imported Yarn Style: SW0SW717 Ultra Light Cushion: Non-cushioned for maximum performance in close-fitting shoes Sock Height: Crew <span class="a-text-bold">Made in USA</span>of Imported Yarn: 61% Merino Wool, 37% Nylon, 2% Elastane Machine Wash Warm Gentle Cycle. Do Not Bleach. Tumble Dry Low. Do Not Iron. Do Not Dry Clean.