This is a washable knit from Theory Luxe. It's on sale for a limited time, until August 11th. I've worn it about 5 or 6 times. It's a 3/4 sleeve with a relaxed silhouette. Product number: 4201765 Product name: HARLING/SAYNA Length: 54cm Width: 130cm (circumference) Front: 53% cotton, 47% acetate Back: 100% polyester (sheer) *Navy, so it has a moderate see-through effect It looks sleek despite its relaxed fit, and it's very cool because it doesn't cling to the body. You can wear it stylishly on its own with an inner layer. Color: Navy Season: Spring, Summer