Purchased on a flea market app. It's a ZARA satin shirt. The previous seller wore it once. I also wore it once. The previous seller cut off the tag at the back of the neck with scissors. The size is XS. It's oversized. I usually wear S-M, but it fit me without any problems! Nagumo Fuuka-chan introduced it in "ZARA's face-flattering tops are too cute" in February 2022, so please refer to it if you'd like! (The size is the same.)