Cold brew concentrate IS cold brew, but it will need to be diluted before you drink it. Some recipes for cold brew call for making a concentrate that you then dilute with milk or water when it’s done steeping. Recipes like this will call for a higher coffee to water ratio.
Here's our full recipe for brewing with Driftaway cold brew bags: https://driftaway.coffee/makingcoldbrew/
And you can buy Driftaway cold brew here: https://driftaway.coffee/coffees/