The top third of the Choice category is Top Tier. Top Tier is the only Choice sirloin La Vaca offers. Nice and lean, customers enjoy sirloin for its combination of flavor and texture. These cuts of meat stand on their own, hot off the grill. They also top off salads and add juicy goodness to many recipes. Order Top Tier Choice Sirloin for delivery this week. Aged up to 40 days for maximum tenderness.