JAX Y3 Chardonnay is a Napa Valley white wine from JAX Vineyards, crafted as a tribute to three generations of the Jackson family and their connection to Yarrayne Ranch. The "Y3" label celebrates siblings Kimberly and Trent Jackson's grandparents, Harold and Lois Jackson, and focuses on lighter, approachable wines that showcase the grape variety rather than heavy winemaking intervention.

Sourced from a single pedigreed vineyard in Carneros, where the cooling influence of the Pacific Ocean enables a long growing season, the Chardonnay grapes are fermented in French concrete tanks and aged in barrels three or more years old to enhance aromatics, elevate mineral character, and highlight terroir. The result is a fruit-forward, lightly oaked white wine with attractive rose petal and camellia aromas, flavors of lychee, Anjou pear, and baked apple, a bright, clean finish, and little oak influence. Wine Enthusiast has rated the wine 90–92 points, praising it as a value-minded Chardonnay.