YOSHIRO SOCKS Yoshiro Socks Size: M (20-25cm) Made in Japan Set of 2 Gray ※The image appears to be a color close to black, but the actual color is a dark gray, like charcoal gray. I bought these for my child, but they don't like five-finger socks and won't wear them, so I'm selling them. Purchased at the regular price from the official website. Both have been worn about twice. There is a feeling of wear, but there are no pills, tears, or fraying. The following is an excerpt from the official website: Made with ultra-high-density fibers, about 1/20th the thickness of hair, and only 2mm thick. Strength is 6-10 times that of ordinary socks. Cleared over 9,000 cycles in a public institution's abrasion test. Aligns muscles, joints, and posture, supporting overall beauty and health. All processes, including fiber, dyeing, sewing, embroidery, packaging, and packing, are completed in Japan. Color: Gray系 (Gray-based) Pattern/Design: Solid Sock Length: Short/Ankle Length Stains, Tears, Odor, etc.: None