Belt sash
From BelegarthWiki
A belt sash is a piece of fabric that is often long and rectangular with a loop that hangs down from thebelt. On this piece of fabric is often displayed a Unit Standard or personal Heraldry. Many Realms also produce belt flags for their members. These flags allow for quick recognition of teammates during battle and are often used in place of tabards because they are cheap and easy to make in large quantities.