Abacus, ZD Wines’ legendary Napa Valley Cabernet Sauvignon, is a multi-vintage blend that artfully expresses the depth and complexity of a well-aged wine infused with a touch of forward fruit and intensity of a younger wine. It is defined by ZD Wines Reserve Cabernet Sauvignon. Abacus has maintained its iconic status as one of the most unique, complex, and innovative wines produced today.