Rainbow is a skydiving trail or a contrail that will appear in Fortnite Battle Royale game while you are descending. To obtain the corresponding emoticon, remember to explore Season 4.
Rainbow creates a particular effect.
It is colorful and spectacular.
How to get
You can receive it at Tier 20 of the paid Season 3 Battle Pass.
You can equip the Rainbow at the Locker before you engage in the match.