Helium is an Uncommon Fortnite Glider. This cosmetic has been leaked, and the glider will hopefully be available to purchase in the near future! Helium was first added to the game in Fortnite Chapter 1 Season 5.
Helium is an unreleased Uncommon Glider. This Glider is part of two others that were leaked a long time ago and have yet to be released.
How-to Get the Helium Glider
Helium was leaked or datamined, which means we don't know for sure how it will be released. Most cosmetics that are leaked will be released within 30 - 60 days of their discovery.