Maybe we are talking about two different things. A hooded sweatshirt has a draw string and is designed to be pulled around your face to keep out the wind (exactly like the picture JennysCool posted).
The things I’ve seen around here called hoodies are stiff, and are supposed to cover up most of the sides of your face (think the evil guy in the second episode of Star Wars, or Ms Basinger in LA Confidential that I previously mentioned). Also there are some orders of nuns that wear something like a hoodie.
That being said, what I have seen that has been called a hoodie looks kind of OK on a woman, plain flat stupid on a man.
I admit I’m not really up on hoodies, been away from the big cities and high crime areas for a number of years.