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 a white juban (undershirt) from my second cousin. It has stains in various places, and there are spots on the han-eri (collar). How about using it for practice with a collar attached, or for remaking? Feel free to ask any questions or request measurements in the comments section. (I am an amateur, but I will measure the length, sleeve length, and裄丈 (yuki - the length from the center of the back along the shoulder to the wrist) for you.)