Features of the Smartwool Women's Compression Hexa-Jet Printed Over The Calf Sock Virtually seamless toe for enhanced comfort Supportive arch brace Shred shield Technology reduces wear from toes Women?s specific Fit; narrower heel and Slimmer Fit Fabric Details 53% Merino Wool, 43% Nylon, 3% Elastane, 1% Polyester