Smartwool Women's Striped Hike Light Crew Socks 61% Merino Wool, 38% Nylon, 1% Elastane Knit in USA 2" high 5" wide Sizing clearly indicated on the sock Flat knit toe seam Elasticized arch brace Machine Wash Warm Gentle Cycle. Do Not Bleach. Tumble Dry Low. Do Not Iron. Do Not Dry Clean. Style: SW000764