The Baseball Cap toppers are two separate items used to customize a player's vehicle. They are simply baseball caps with either the Rocket League or Psyonix logo above the visor. On the back of the cap, NICE SHOT! is printed in white. The toppers are both categorized as uncommon rarity.
There are no painted variants of the Baseball Cap toppers.
Baseball Cap (F)
The Baseball Cap (F) is the front-facing variant. The visor is pointed forward, in the way that a baseball cap is typically worn. It has the Rocket League logo above the visor.
Baseball Cap (B)
The Baseball Cap (B) is the backwards-facing variant. Unlike its partner, the cap is faced backwards, toward the rear of the vehicle. It has the Psyonix logo above the visor.