It's a knit sweater. The color is black and white. This piece is adorable with its large checker flag pattern. The polo collar design adds a casual vibe, which is great. I love checker flags in general, but I especially like that it has a collar instead of just a crew neck. Size (measured flat) Shoulder width: 55cm, Body width: 53.5cm Sleeve length: 53cm, Length: 61cm Condition: There is a small hole near the hem on the back. Please check the photos for details.