Lucky Fisherman's Hat

The Lucky Fisherman's Hat is obtained by trading in the Jungle Fish, Elusive Joe to the fisherman. When worn it adds a new 'Lure' tab to the UI which filters out the lures currently in your inventory.

Source

 * Fisherman
 * Jungle Island

Trivia

 * It is supposed that wearing this hat let the player catch new types of fish (not confirmed).
 * Obtaining this item lets you complete the "Mad Hatter" Steam achievement.