My mother and second cousin practically forced me to take my great-aunt's and second cousin's kimonos, and told me to get rid of them somehow, whether by selling them or using Mercari. This is my great-aunt's underkimono (nagajuban). It's generally very dirty and in such a fragile state that it looks like it could tear at any moment, so I don't recommend wearing it. Perhaps it could be used for remaking something. Feel free to ask any questions or request measurements in the comments section. (I'm an amateur, but I can measure the length, sleeve length, and arm span.)