Crafted and designed in Japan. RoToTo uses traditional and modern manufacturing techniques, to create the ultimate cool-comfort sock with the tag line - have a good feel. These socks are the epitome of style and fit. Size M = 8 to 10. Size L = 10 to 12. Made in Japan. 42% cotton, 42% acrylic, 13% polyester, 3% polyurethane.. Color: gray