Ad Vivum Cellars is a partnership between legendary Napa winemaker Chris Phelps and Larry Bettinelli, a vineyard manager who is also a fifth-generation Napa Valley farmer. In 2005 Phelps began experimenting with fruit from the Bettinelli Family Sleeping Lady Vineyard in Yountville. The single-vineyard, 100% Cabernet Sauvignon Ad Vivum is made in very small quantities of about 2,000 bottles or fewer.