Button up (or button down)? It's a nice shirt! Great condition with all the buttons in tact. Has the Brooks Brother label and icon in the front. Just needs a quick ironing if anything. Size Small and I believe it is a woman's. I'm a petite size 10-12 at five foot and the sleeves are very good, just slightly long. Realized I have 3 shirts like this and need to clean out. No stains or rips or anything. Please feel to ask any questions. Fairly soft and really comfortable.