Isostar Lemon. An isotonic sportdrink.
The can is very busy. Lot's of things are printed on it. The blue, white, silver and yellow match good. The yellow is used because it simulates the lemon-colour.
The drink itself is good. But it feels like a little tastier non-carbonated Red Bull. For a non-carbonated not bad, but far from perfect.
However, it is the best isotonic sportdrink I've tasted so far.