Great piece for all year round. Has a slight sheen to the fabric! String at bottom with pockets. So cute! 100% polyester. Amber (brunette in second picture) is wearing a medium and is usually a size 8 on top - more of a 10 in the bottom. True to size. This is more of a wind jacket, so great for summer. Not lined. Not totally cropped but on the shorter side. Model in first picture is wearing a size small and is normally a size 4.