Purchased from Amazon around 2018. This is a detachable collar that looks like you're wearing a shirt under a knit sweater, etc. The collar tips have a cute blue bird embroidery design. I have never worn it and it has been stored at home. It is almost unused, but due to aging, there is a slight stain on the piping on the sides (see photo 6, inside the gray circle, and photo 7). If you don't mind those, I think you can still use it. For safety, it has been home-cleaned. Please check the contents and purchase with your understanding. 〈Size Details〉 ▼Neck circumference...approx. 43.5cm ▽Front button closure ▽The part that looks like a striped string on the sides is elastic, so it should fit a certain range of sizes. ▽The collar material is chiffon. ▽The shirt color is white. ※When shipping, it will be folded for packaging. Thank you for your understanding. Instant purchase OK. If you have any questions, please feel free to comment. ④