On the Rolling Stones' record single: The Under Assistant West Coast Promotion Man, what type of men's clothing is mentioned?

The Rolling Stones' record single, "West Coast Promo Man," talks about wearing a seersucker suit. Also, in the same line of the single, a Corvette is mentioned along with the suit. The song isn't among the Rolling Stones' more renowned songs, but according to sales a lot of people own it. The song actually was based on a real person, George Sherlock. He worked for the group's U.S. label, London Records, and accompanied them on their first American tour.

Specifically, The Under Assistant West Coast Promotion Man (May 1965) is a single credited to Nanker Phelge which refers to a collective pseudonym of Mick Jagger, Brian Jones, Keith Richards, Charlie Watts, and Bill Wyman. Also, with early music compositions (1963 - 1965), Ian Stewart (known as "the sixth Stone") was a co-author covered by the pseudonym.