The 2015 Opus One is a blend of 81% Cabernet Sauvignon, 4% Petit Verdot, 7% Cabernet Franc, 6% Merlot and 2% Malbec. This wine captures all the essence of the vintage while retaining a good bit of aromatic freshness. New oak is still a bit prominent, but that should not be an issue as the wine ages. Wine offers plenty of structure to develop well over 20 years.