I had these stored at home. The size is approximately 22.5-25cm. Length: Approximately 40cm (from heel) From the website: RED SOX APPEAL, a new sock brand from REDA, a premium fabric manufacturer founded in Italy in 1865. It is a premium sock brand that uses the finest combed cotton yarn for all its products. In addition to the comfortable feel provided by the high-quality materials, it also features vibrant Italian colors and designs.