The cape does lend an aspect of mystery to vampires, allowing them to obscure their form. It also creates a larger profile making them appear larger and thus more intimidating.

What do vampires usually wear?

Dress practically. In cold weather, vampires usually wear long velvet cloaks in black or red, or a leather jacket or black trench coat. When it’s hot, you’ll probably have to ease up on the heavy makeup and thick layers, but try to stick to wearing black clothes and stay inside.

Why do vampires have high collars?

There the humans wear high collars as a defense against vampires (not to mention the cold). The vampire houses, on the other hand, wear no or low collars, as they have no need to protect their jugulars and are weather-resistant.