This is a Saint Laurent jersey vest purchased a few years ago. It's an XXS size, but the width is designed to be cinched with a belt, so it's not extremely small and I think it's about a general S size. At first glance, it looks simple, but when you wear it, the back has a cocoon-like silhouette, and the fine details are typical of Saint Laurent. I think it would be cute to wear with a high-neck knit or something similar underneath for the upcoming season. I've only worn it 2-3 times and my preferences have changed, so I'm selling it.