This is an American Eagle knit sweater. As you can see in the photos, it has zippers on the sides and slits in the sleeves, allowing for various styling options(^^) The size is American size xxs. I think it's about a Japanese S or M size. The length isn't too long, so it looks really cute paired with denim! I've worn it about 5 times. Please refer to the photos. American eagle gap ae hm forever21 Zara