Cabernet Sauvignon (85%), Cabernet Franc (7%), Merlot (wine unfiltered). Isosceles is our flagship wine and the highest expression of our winemaking philosophy. A classic blend of Cabernet Sauvignon, Cabernet Franc and Merlot, Isosceles offers complex flavors of lush currants and black cherries with subtle notes of toasted oak and vanilla. We invite you to enjoy the iconic wine that put Paso Robles on the map. Justinwine.com. Alc. 14.5% by vol. Produced by Justin Vineyards & Winery, bottled by Justin Vineyards.