This is a high-gauge knit made with smooth, soft yarn ^_^. The fabric has a nice weight, creating a beautiful, flowing silhouette. The high gauge and moderate thickness of the fabric prevent transparency. It's a black and off-white striped pattern. The neckline is neither too wide nor too narrow, offering a perfect balance of elegance. The fabric's texture allows for year-round wear. It also seems like it would be great for layering in the winter. Please understand that this is a used item. ^_^ The size is labeled 170/116a, but If you prefer a loose fit, it would suit someone who usually wears a size S, and If you prefer a more fitted look, it would suit someone who usually wears a size L. The category is listed as M size because I usually wear S, but it fit loosely when I wore it.