Kirkland Signature Napa Valley Red Blend is a Bordeaux-style wine crafted exclusively for Costco from California's premier wine-growing region. The current vintage is a classic blend composed of 58% Cabernet Sauvignon, 25% Merlot, 9% Malbec, 5% Cabernet Franc, and 3% Petit Verdot, all sourced from the well-drained gravelly loams and silt soils of Napa Valley. The wine is aged in oak and carries 14.5% alcohol by volume. Cellared and bottled by DC Flynt MW Selections.

On the nose, this wine opens with jammy aromas of ripe black cherry, cassis, sweet spice, vanilla, cola, and black pepper with a hint of cigar box. On the palate, it is balanced, smooth, and silky with a medium body, offering flavors of plum, cherry, and assorted berries complemented by light touches of vanilla, cedar, sage, and tobacco. Spice notes develop on the mid-palate and lead into a long, dry finish.

This wine consistently earns high praise from critics across multiple vintages, including 88 points from CostcoWineBlog and a Highly Recommended rating from Reverse Wine Snob for the 2022 vintage, with prior vintages scoring between 86 and 90 points. It is widely regarded as one of the best domestic red wine values available at Costco.