Marusho Nagomi no Ito (Threads of Harmony) Nagomi no Ito Silk 5-Toe Socks Black Silk 95% Nylon 3% Polyurethane 2% The size is indicated as 24x26, so I believe it is approximately 24-26cm. According to the description, they have sweat-absorbing, quick-drying, and deodorizing effects, eliminating stuffiness, stickiness, and bad odors. They provide a crisp, refreshing feel and make the spaces between toes and heels smooth. They are thin, so they can also be used for layering. The outer bag was torn when I opened it for photography, so it has been replaced. Please understand that they will be shipped in simple packaging with measures to prevent water damage. Thank you very much.