Actual size is 23.5-24 cm. The width is also narrow because it's vintage, so it may be too small for those who wear 24.5 cm. Also, although there is no problem with wearing them, one side of the inside is curled up. If you are concerned, I think it would be more comfortable to repair it with adhesive etc. If you have any questions, please feel free to comment. vintage JANTIQUES used clothing vintage shop JAM Grimoire Flamingo flamingo retro ballet core Shimokitazawa Koenji