Pour the water and the grape juice in the jar then add the Starbucks VIA refresher and the sugar. Stir the mixture well to combine.
Add the berries into the mixture and shake well to infuse the berries with the refresher.
Put the ice in the serving glass and pour the refresher over the ice.
Throw in the lime wedges to garnish.
Let the drink sit for about 1 minute to allow the ingredients to settle in then enjoy.