I.W. Harper Kentucky Straight Bourbon Whiskey Finished in Cabernet Sauvignon Casks. Aged for a second time in luxury Cabernet casks from California, this ultra premium bourbon takes the subtle sweetness and distinct character of fine Cabernet wine and pairs it with our smoothest bourbon to create an exceptional symbol of modern refinement. The result is a wonderfully complex bourbon with bursts of toasted vanilla, ripe fruit and spice, for an exceptionally clean, lingering, smooth finish and a rich character. Enjoy neat, on the rocks, or in a cocktail.