tressure
/ˈtrɛʃər/
noun
- A thin decorative border or band, often used in heraldry, that runs parallel to the edge of a shield or flag.
- The knight's shield had a gold tressure with small fleur-de-lis inside.
- The flag of Scotland includes a tressure as part of its royal coat of arms.
- The family crest featured a double tressure around the central lion.