It's a slightly large size S. The underarm measurement is approximately 48 cm, the length is approximately 53 cm, and the sleeve length is approximately 48 cm. The material is 55% acrylic and 45% cotton. It's a subdued wisteria color with a pattern, more so than in the photos. It seems like it will be useful in the coming season. I'm selling it because I have it in a different color.