Features of the Smartwool Women's Arrow Dreamer Mid Crew Sock Virtually Seamless toe for enhanced comfort Supportive arch brace Shred Shield Technology reduces wear from toes Mid crew height is a seaonless silhouette that doesn't constrict calf muscle Narrower heel and Slimmer Fit Fabric Details 48% Merino Wool, 49% Nylon, 3% Elastane