CAPELET: A caplet is a short version of a cape that covers the shoulders and typically ends around the elbows.
CAPE: A cape is a sleeveless outer garment that ends anywhere from the hips to the knees. It usually fastens around the neck.
PONCHO: A poncho is a sleeveless blanket like outer garment that is pulled over ones head.
CLOAK: A cloak is a long sleeveless garment that often has a hood and ends around the ankles.