Doubleback produces Cabernet Sauvignon and Chardonnay from Washington's Walla Walla Valley, a region defined by warm days, cool nights, and deep volcanic soils. The winery's Estate Reserve Cabernet Sauvignon represents the pinnacle of its portfolio, a wine that reflects the valley's capacity for structured, age-worthy reds. The core Cabernet Sauvignon and Chardonnay offerings demonstrate the breadth of the vineyard's terroir—the former showing the dark fruit and tannin architecture characteristic of the region, the latter the mineral precision and balance that Walla Walla achieves in white wine production. These wines have been assessed by Wine Advocate, Wine Spectator, Wine Enthusiast, Decanter, and Falstaff.