Smartwool Women's Mini Crew Ultralight Toe Socks 100% Wool Smartwool inside for moisture, temperature and odor control Elasticized arch and ankle brace provide a performance fit for maximum comfort 73% wool, 24% Nylon, 3% Elastine Fits Men's Medium, size 6-8.5 Shoe Women's MEdium, Size 7-9.5 Shoe