100% cotton, a thick cotton fabric somewhere between oxford and pique. It's likely indigo-dyed and then washed. Although it's a fabric different from denim, oxford, or pique, the way the fading and puckering appear suggests it's made for those who appreciate the aging of fabric. At first glance, it's a denim shirt, but it has the look and functionality of a polo shirt! Size: XS (equivalent to a Medium) Shoulder width / Body width / Sleeve length / Length Shoulder width: 43cm Body width: 50cm Sleeve length: 22cm Length: 76cm Color: Blue系 (Blue-based) Color design: Button-down (BD) There is no noticeable damage. I have various Ralph Lauren items! ↓ ↓ ↓ ↓ #ラルフローレンRL色々！！ (Various Ralph Lauren RL items!!) ☆☆I also have vintage T-shirts!☆☆ ↓ ↓ ↓ ↓ ↓ #古着Tシャツ色々！！ (Various vintage T-shirts!!) *Please note that these are used items, so if you are sensitive to minor stains or odors, please purchase new items from an authorized retailer! *Please understand that the color may appear slightly different depending on your device and screen brightness! If you are particular about the color, please check the color at an authorized retailer and purchase a new item! SLG