Ready to Drink cocktails, or RTDs, are just that: conveniently packaged, alcohol-included cocktails that are ready to drink on their own, chilled, or with ice.
Sometimes referred to as flavored malt beverages (FMBs), malternatives, alcopops, or even "wine coolers", these started out as sweet, fruity, "highly palatable" concoctions using cheaper malt alcohol bases in the US in the late 1980's through 2004. In recent years, the category has migrated towards more classic cocktails conceptions using fresher, more natural tasting ingredients and clearly identifiable distilled spirits as their base.