Smartwool Women's Optic Frills Knee Sock wool Combine stripes and solid cuffs for a knee sock that can be worn slouchy or over the knee Women's sizes Small (shoe size 4-6.5) Medium (shoe size 7-9.5) Large (shoe size 10-12.5) NOTE Women's size Small fits Youth shoe size 2-4.6 76% Wool, 22% Nylon, 2% Elastic. Washer and Dryer Friendly! Non-cushioned sole, knee high height