Abstract: An aluminum base alloy suitable for forming into a wrought product having improved combinations of strength and fracture toughness is disclosed. The product is comprised of 0.2 to 3.0 wt. % Li, 0.1 to 3 wt. % Mg, 0.2 to 3 wt. % Cu, 5.1 to 12 wt. % Zn, 0.5 wt. % max. Fe, 0.5 wt. % max. Si, at least one of the elements selected from the group Cr, V, Hf, Mn, Ti, Ag, In and Zr, with Cr, V, Ti and Zr in the range of 0.01 to 0.2 wt. %; Hf and Mn up to 0.6 wt. % each, Ag in the range of 0.05 to 1 wt. % and in the range of 0.01 to 0.5 wt. %, the balance aluminum and incidental impurities.