Kashiyama Kashima Short Sleeve Polo Shirt ESP-556 [ENJOY] Size M I believe this is a standard size 9. It has stretch. It's not see-through, even when worn alone. Worn a few times last year, then stored at home. I'm selling it because I won't be wearing it this year. There's a small snag. See photo 6. Otherwise, there are no noticeable stains or spots. Feel free to ask any questions. Please understand that this is a used item before purchasing. It will be folded and shipped via Yu-Packet Post.