One Shoulder

What are those one strapped bags guys wear over their shoulder?

I’ve been seeing a lot of other guys wearing these bags that lay against there hip and wrap around the opposite shoulder (BTW they have only one strap). What are the name of these bags?
Ashley, do you point and laugh because your a vain dumb ignorant bitch? I can’t think of any other reason why you’d be pointing and laughing at anyone. Please enlighten me.

messenger bags?

The Sewing Studio: Hippie Chiffon One Shoulder Shirt