(No material label remains but I would say 100% wool or a very high wool content. BUT THE LINING IS NOT SMART! What you see is what you get. Heavyweight wool fabric at 1.9 kilo. Label size UK 16 (US 12) but possibly a different coat :-).
Vintage wool CAPE CLOAK black mohair VALMELINE military cavalry officer
Vintage WOOL CAPE CLOAK COAT 14 16 18 lagenlook theatre costume boho peasant
Vintage HOURIHAN CAPE CLOAK 8 10 12 med scarf 100% pure new wool red irish
AUSTIN REED WOOL CAPE CLOAK COAT 12 14 16 Medium lagenlook cashmere green