Los Haroldos produces wines from Mendoza, Argentina's premier wine region. The winery's portfolio centers on Malbec, the varietal that defines the region's character—deep, structured, and rich with dark fruit. Their Malbec and Malbec Roble both demonstrate the grape's capacity for aging and complexity in Mendoza's terroir. The Oak Cabernet Sauvignon rounds out the range, offering the structure and weight that Cabernet brings to the region's blending tradition. Wines from Los Haroldos have been assessed by Decanter, Wine Advocate, Wine Enthusiast, and Wine Spectator.