MB Medical Socks Elastic Stockings, Compression, Medical Use High Socks, Made in Japan, Size M Open Toe Type Purchased new Only tried on (worn over socks) No packaging I have experience using size M products from other manufacturers and purchased the same size this time. I felt it was a little tight, so I don't think I will use it in the future, so I decided to sell it. I hope this will be useful for those who want strong compression. I will include the manufacturer's size chart and product introduction for reference (Photos 3 and 4).