The Madcap skin is an Epic Fortnite outfit. Madcap was available via the Item Shop for 1500 V-Bucks and you can buy it from Fortnite Item Shop when it will listed.
Fortnite Madcap Skin Details
The master of mushrooms enters the fight.
Fortnite Madcap Skin PNG Images
Here is the PNG images of Madcap below!