Old Overholt? is the oldest of The OldsTM, a relic you can drink. This famous Straight Rye Whiskey has a distinctive ?avor and appeal that, after Prohibition, made it the most popular spirit in the country. It?s renowned for its outstanding mixability in classic cocktails like the Old Style Manhattan (look it up). The one and only Old Overholt? is 80 Proof and aged 3 years.