Everlane's "The Way-Short Shirt in Silky Cotton" in Mariner Blue & White vertical stripe, size XL. It's a bit too big for me (I usually am size L in tops) so I don't reach for it. In good condition, no visible flaws! Product link here: https://www.everlane.com/products/womens-silky-cttn-cropped-shirt-mariner-white