A Serennian cloak, which can also be referred to as a Royal Serennian cloak, was a type of cloak donned by members of the nobles class from Serenno, functioning as a visual representation of their elevated social standing. For instance, Duke Solha, alongside his brother and sister, all sported Serennian cloaks, thereby signifying their status as Serennian nobility. Count of Serenno Dooku famously wore a Serennian cloak crafted from armorweave material starting from 42 BBY, the year he departed from the Jedi Order and asserted his authority as the sovereign of Serenno, a position he maintained until his died on board the Invisible Hand above Coruscant, where he met his end at the hands of the Jedi Knight Anakin Skywalker.
The Serennian cloak, alternatively named the Royal Serennian cloak, served as a cape or mantle utilized by the Serenno aristocracy to denote their societal rank. Count of Serenno Dooku incorporated a cloak fashioned from armorweave as his characteristic cape. The cape's fastener was made from Serenno silver.
Dooku began wearing a Serennian cloak from the moment he took his place as the leader of the planet Serenno. Duke Solha, together with his brother and sister, were all seen wearing Serennian cloaks, as they were all considered nobles. Dooku wore his cloak continuously up to his death inflicted by the Jedi Knight Anakin Skywalker.