The second generation of the evolved milestone original socks series is finally here. Made in Japan, the milestone original socks series, second generation, pursues durability, breathability, and comfort (fit). 1) CORDURA® nylon yarn is used for the toes and heels, significantly improving the strength of areas that are prone to wear and tear. The footbed cushion has been changed from nylon to polyester. This provides better moisture wicking and quick drying properties, improving comfort by allowing sweat to escape, and increasing the overall compression of the socks, enhancing support. Material: 71% Polyester, 23% Nylon, 6% Polyurethane Country: JAPAN Size: M: 22.0cm-25.0cm Used about twice, but there is some pilling and fuzzing on the toes and heels. Please understand this before purchasing.