Purchased at a directly managed store over a decade ago. I used to wear it often, but it's only been in storage for the past few years. It's an indigo-dyed, 100% cotton shirt, but as noted on the product tag, it's a delicate material. It has a slightly thick gauze-like texture, giving it a cool feel. It is not see-through. There is a tear in one area due to catching the neck part (see photos 10-12). In my opinion, even considering that part, the color and texture are still very much in the style of 45R, and I would like to sell it to someone who appreciates the used feel. Size "1" is equivalent to a size S, but since it was for me, a 160cm tall person of average build, it's closer to "S~M size". Dry cleaned. Reference size (measured flat): Shoulder width: 34cm Body width: 46~49cm Length: 63cm