noun
A loose, sleeveless outer garment worn over other clothes, often associated with historical or fantasy contexts. The French loanword マント is more specific than the general English 'cloak' and is commonly used in Japanese for capes in anime, games, and period pieces.
from French manteau
See also: マンテル
魔法使いは長いマントを羽織っていた。
The wizard wore a long mantle.
あのヒーローの
That hero's trademark is a red cape.