Seasonal Items are obtained for free during the event associated with them and then can be purchased with microtransactions later on, usually after a year has passed.
Dyes can be obtained infinitely or purchased from other players with in-game currency. In addition they can also purchase dyes and historical seasonal items. This includes outfits, mounts, minions, emotes, chocobo bardings, orchestrion rolls, and premium variations of Eternal Bond ceremonies. Players can purchase a number of items that are exclusive to microtransactions. Players can purchase a book that instantly completes these quests up to the starting point for the latest expansion.
In order to access the latest content, players must complete all story content that has previously been released. Players can purchase books that instantly levels a class up to level 70. Stranger of Paradise: Final Fantasy Origin
