I just discovered this. Carbonated water and flavour. No sweeteners. I presume its raison d’être is to mix with ethanol beverages. I’ve experimented with a sampler of this. Works well. 
It’s a viable alternative to Perrier. But supermarket house brands in 2 liter bottles beat it price-wise.
And there’s this:
I love this stuff. Picked up a 12 pack of Cherry (my favorite) at the store tonight. I also really like the Grapefruit. 
My first experience was grapefruit. Grapefruit flavoured water is a great mix for gin (new style, I don’t like traditional London Dry gins).
I mixed some vodka with it a few times. I did find the Strawberry to not be one of my favorites.
As the article says, this is Pepsi’s entry in the lucrative LaCroix or Polar market 
If you don’t drink their sugar-sweetened flagship products (Pepsi, Mountain Dew, etc), or the artificially sweetened “Diet” versions, then they’ve still got you covered!
The mango flavor is probably my favorite.
Carbonated water with various natural flavours are a fixture in my house. Keeps me from wanting anything with sugar OR artificial sweeteners.
Yeah same. I don’t do either sugar or sugar substitute, especially in drinks. I’m alergic to 98% of the ones out there, though Swerve I can handle in small amounts, but drinks never use that.
LaCroix Lime or Passionfruit are my go-to’s. I’m trying to cut down on the fizzies so I’ll not want diet soda…so, I usually pour into a large cup, and add water - so its 50/50.
There is a really cute commercial I saw on the tv with Michael Buble in the super market sitting on the floor, marking off the y and adding a e with the mark over it =).