This is a Buddhist robe (法衣), a kesa (袈裟) in a yellowish-brown color, made of silk (正絹). It is a five-strip kesa (五条略袈裟). There is a name written on the lining, and there are stains. Please check the images. I am not a specialist, so I do not know the details. Please purchase only if you can confirm and judge from the images.