They're plaid slacks--sultry, irresistible, plaid slacks. Put them on and women will throw themselves at you.
This was the 60s. It was a different time in America. Back then, before the development of certain vaccines, women lost control of themselves whenever they encountered plaid slacks, flat front shirts, or houndstooth pants. Unscrupulous men took advantage of this weakness with the encouragement of equally unscrupulous fashion companies. Flashbak rounded up many of these outrageously blunt advertisements.
-via Weird Universe