Navy blue long-sleeved T-shirt, made of a warm polyester and wool blend. It feels like an undershirt. I bought it at a golf shop. - Color: Black - Material: 84% polyester, 16% wool - Size: LL Thank you for looking. This is a used item stored at home. I am selling it because the armholes were too tight. I have a cat, so please refrain from purchasing if you have allergies.