Cream, silk like fabric, long blouse top / tunic from H&M. Size 20.
V neck.
Pockets at the bust.  Double buttoned cuff.
Around 32 inches long at the back, from nape of neck to the hem and roughly 25 inches across the front.
I wore this only 3 or 4 times, as an oversize tunic, over skinny jeans, but it could be worn tucked in too.