This is a custom-made, tight-fitting shirt. It's made of thin cotton fabric. Purchase price: 15,000 yen. It was tailored when I was 164cm tall and weighed 51kg. The waist is a bit narrow, and the sleeves are slightly short, just enough to show half of a watch. It's very tight so it can be worn under a rider's jacket, so please check the size, including the photos. I wore it only once after it arrived and then stored it in the closet. Since it's not a ready-made item, you will definitely not see anyone else wearing it. Also, it's recommended for those who find even a size S in ready-made clothes too large! Shoulder width: 39cm Body width: 39cm Sleeve length: 54cm Length: 61cm Material: Cotton Pattern: Check