マント → cloak, cape (depending on length and degree of coverage) ケープ → capelet, mantelet (like the one worn by Alice Margatroid)
An actual mantle would be something similar to the kouchigi.
Garaigo strikes again.
Don't worry about something as trivial as this.Kya!?I can't do that! I'll give it back after getting it cleaned!Sorry. You okay?You will now?Whoa there.I'm fine, but your cloak is...Naka-chan's mufti check!I was spacing out.