Siren Craft Brew's Strata Infused Sparkling Hopwater is an alcohol-free sparkling water infused with hops, the same ones that flavour the brewery's beers. This version uses Strata, a hop that brings strawberry, a dank character and a tropical fruit flavour. It carries no caffeine. Siren also makes Citra Sparkling Hopwater and Nelson Sauvin Sparkling Hopwater as part of its hopwater range.