This is a UNIQLO halter neck bra tank top. The size is M, and I'm selling a set of two in white and khaki. These are not from this year; I bought them last year or the year before. I've only worn each of them once or twice, but the white one has a small stain on the inside, as shown in the photo with the size information. (It's not visible from the outside) *If you would like to purchase one separately, please comment. Thank you.