Sockwell Women's Fun Isle Socks 33% Merino Wool/33% Bamboo Rayon/29% Stretch Nylon/5% Spandex Made in the USA and Imported Y Heel Shape for Better Fit Non-binding Roll Top Sock Offers All-Day Comfort Spandex Throughout prevents slippage and ensures a snappy fit throughout the day Flat Toe Seam Cushioned Sole for Comfort and Fit