The navy cavalier is a piece of headwear. There are no requirements for wearing this cavalier, and they do not confer combat bonuses upon the player. To obtain a cavalier, a player can either trade with another player or receive one as a Level 3 Treasure Trail reward. The navy cavalier can be stored in the Treasure chest, which can be built in the Costume room of a player-owned house.
- The examine text, "All for one and one for all!" is a reference to The Three Musketeers, by Alexandre Dumas.