Undercurrent is a Rare Fortnite Wrap from the Dive Crew set. Undercurrent was available via the Battle Pass during Season 13 and could be unlocked at Tier 18.
How-to Get the Undercurrent Wrap
Undercurrent is part of Season 13. If that season is still currently in the game, you can obtain this item by purchasing and/or leveling up your Battle Pass.
Dive Crew Set
Undercurrent is part of the Dive Crew set! You can find all of the items that belong to it below.