Ah now - I wasn't going to mention the saggum as it is Gallic in origin, fastened with a pin or thorn rather than a fibula, and striped.

To put on the saggum meant to go to war.

On Trajan's column there are almost 70 soldiers wearing the saggum, most of the other cloaked soldiers are wearing the paenula.

Comfortable practical clothing is never absolutely out of fashion, and impractical fashions soon vanish, or are only seen on certain rare occasions.