Vct sponsor red bull

Does the redbull throwable cups/glasses we see the players have on stage contain real red bull or it's just water??

now why would it be water

it's lean

i think, it's whatever the player prefers

Caffeine enhances performance.

Players can choose whatever they want in it

What matters is the logo ( as an extension of their brand) is being seen in those cups, so it doesn't really matter whether it's water or not, the logo being shown already fulfills the mission.