Fireflies is a Rare Fortnite Contrail from the Red Riding set. Fireflies was available via the Battle Pass during Season 6 and could be unlocked at Tier 36.
How-to Get the Fireflies Contrail
Fireflies is part of Season 6. If that season is still currently in the game, you can obtain this item by purchasing and/or leveling up your Battle Pass.
Red Riding Set
Fireflies is part of the Red Riding set! You can find all of the items that belong to it below.