Bought jacket in Tokyo around 11/18/2024. Japanese Uniqlo sizes run a size down from US, so this one is Japan size Medium but it FITS like a Uniqlo size Small. If you look up size dimensions on Japan site and compare to US site, it will back this up. I’ve also purchased this coat in black in the US and can confirm the US Small fits the same as Japan Medium. The only reason I am selling this jacket is because I prefer it even more relaxed and oversize than it is. I love this jacket so much that I already ordered the same one, in green in size US M. The jacket is incredibly light weight, water resistant & surprisingly warm. I’ve worn it with a sweatshirt underneath in 20 degree snowy weather and felt fine (note: I also had a scarf and beanie on). Makes a perfect chuck on jacket. Only wore the jacket a few times - in great, brand new condition without tags. I tried to take photo of the frabic tab to prove that this was purchased in Japan. The writing is all in Japanese.