This is a LACOSTE knit sweater, purchased from a used clothing store. As you can see in the fifth picture, it's a slightly thin and breathable type, almost like mesh, so I think it's a summer knit? I'm not sure, sorry. There's a slightly darker spot on the right chest area, near the bottom of the V-neck. The size is listed as 3, which I believe is roughly a size S. I've worn it twice, but since I bought it from a used clothing store, please understand that it's pre-owned before purchasing. Also, it will be folded and shipped, so please be aware of that.