Cingulum militare

A cingulum militare was a piece of ancient Roman military equipment in the form of a belt decorated with metal fittings, which was worn as a badge of rank by soldiers and officials. Many examples were made in the Roman province of Pannonia.
The belt was composed of the following parts:
Baltea: Hanging band that was compounded for an overall band.
Bulla: Rivets on the baltea.
Pensilium: Pendants at the end of the straps of the belt.
Lamna: Discus at the end of each apron strip that embrace the pensilium.
Fibula: Buckle of the belt.
The cingulum militare was used in conjunction with the helmet (Galea), the shield (Scutum), the overall armor on the upper body (Curias), a dagger (Pugio), and a sword (Gladius).
References.
The Roman Soldier's Belt