This is a shirt from Urban Research. Material: 100% cotton Retail price: 8,800 yen The following is a quote from the web: This work shirt, essential for a military style, uses high-density typewriter fabric and has a slightly crisp feel, making it perfect for a sophisticated casual style. The slightly relaxed sizing makes it easy to wear over blouses and cut-and-sewn tops, and it's also useful as a light outer layer during the changing seasons.