The Whistle Warrior skin is an Uncommon Fortnite outfit. Whistle Warrior was available via the Item Shop for 800 V-Bucks and you can buy it from Fortnite Item Shop when it will listed.
Fortnite Whistle Warrior Skin Details
Throw a flag on the play.
Fortnite Whistle Warrior Skin PNG Images
Here is the PNG images of Whistle Warrior below!