The sweater set was bought separately the same year so the color matches. The sweater is 30% wool. But I just washed it to make sure it would actually wash in the washing machine and hang to dry and it came out fine. The tank is from their wearever collection. Take a look in the photos as to how the sweater is constructed. It has a single button in the front and a seam horizontal in the back and it’s very lightweight and is long sleeve. The tank is about 30 inches long from shoulder seem to the bottom of the hem. The sweater is about 33 inches. The tank is about 22 inches across from armpit to armpit measured flat. It looks really good with the long necklace, particularly in silver.