Is this a short-sleeved formal collarless jacket...? I suppose it is. I think it can be used in various ways depending on how you style the set. This is a used item. Please check the images, and if you are satisfied, please consider purchasing. I have a cat. I use a lint roller and am careful, but dark colors may show cat hair, so I can't say for sure. To prevent any problems, please refrain from purchasing if you have any concerns. To someone who will use it. I will ship via Yu-Packet Plus. Please be aware of any folding wrinkles. No price reductions.