Sockwell Women's Fan Flower Socks 33% Merino Wool, 33% Bamboo Rayon, 29% Stretch Nylon, 5% Spandex Made in US Turn welt top helps keeps the sock in place Seamless toe closure offers a smooth and comfortable fit Arch support offers a comfort fit and helps keep the sock In place Non cushion sole Spandex throughout the sock prevents slippage and ensures a snappy fit throughout the day