The Sky Stalker skin is an Legendary Fortnite outfit. Sky Stalker was available via the Item Shop for 2000 V-Bucks and you can buy it from Fortnite Item Shop when it will listed.
Fortnite Sky Stalker Skin Details
Barrel roll through the competition.
Fortnite Sky Stalker Skin PNG Images
Here is the PNG images of Sky Stalker below!