Smartwool Light Hiking Crew With classic styling, ample cushioning, and a supportive fit, our Jitterbug Crew has impressive range. Whether youre at the office, walking a riverbank, or out on the dance floor, give your feet the youthful, nostalgic glow they deserve. Features: Sock Height: Crew Sizing clearly indicated on the sock Flat knit toe seam for additional comfort Elasticized arch brace Made in USA of Imported Yarn: 69% Merino Wool, 30% Nylon, 1% Elastane Care: Machine Wash Warm, Wash Inside Out. Do Not Bleach. Tumble Dry Low. Do Not Iron. Do Not Dry Clean.