This is an original T-shirt that was a prize for 30 lucky winners in a lottery held as part of the Amazon-exclusive box set of Kaki no Tane (rice cracker snacks) released to commemorate the 2019 release of "The Rise of Skywalker." I was fortunate enough to win, but I never wore it because I wanted to keep it in good condition, so it's been sitting in my closet. The size is L. At first glance, it doesn't appear to be a collaboration with Kaki no Tane, but it has a unique design that reads "KAMEDASEIKA KAKINOTANE SPECIAL BOX" in Aurebesh script.