Alcoholic Fizzy Water?

There is a fast growing market in the US for alcoholic or hard seltzer (i.e. fizzy water). Biggest brands are White Claw and Truly.
It is on trend for a health conscious younger demographic that has shunned beer.
So far this has been largely a US phenomenon but is likely to spread to the rest of the world.
The big brewers are waking up and bringing in their own brands.
Google search trends do suggest it was a summer phenomenon.