This is a Diesel denim shirt. I bought it about 5 years ago, and I think it cost around 20,000 yen. The size is S, but it fits me perfectly, and I'm 177cm tall and weigh 68kg. I think it's equivalent to a Japanese size M. It wasn't really my style originally, and I bought it because my girlfriend recommended it. So, I didn't wear it much from the time I bought it, maybe a total of 10 times, plus my girlfriend occasionally wore it when she went out.