Château Roubaud produces wines from Costières-de-Nîmes, a Southern Rhône appellation known for warm, sun-exposed vineyards and Mediterranean-influenced reds. The winery's flagship Costières-de-Nîmes blends Grenache, Shiraz, and Mourvèdre—a classic Southern Rhône composition that captures the region's ripe fruit character and structured tannins. The Cuvée Prestige Costières-de-Nîmes follows a similar varietal framework, offering a more concentrated expression of the same terroir. Both wines have been assessed by Wine Enthusiast, Decanter, and Wine Spectator. The Costières-de-Nîmes appellation sits near Nîmes in the Gard department, where limestone and clay soils support the production of food-friendly reds built on Grenache's generosity and Mourvèdre's savory depth.