The Game of Lasting Smoothness

Since it's been almost two years since I last brought my collection of chess ads up to date -- last mentioned in Chess Ads V -- I decided to do some work on them. It took me so long to go through the backlog that I didn't have time for a real post today. Here's an interesting ad, probably from the 1970s.

The fine print says,

Kodel • An Eastman Polyester Fiber • With Kodel it's always a one-sided contest in the game of lasting smoothness. Whatever your move, you'll make the right one every time in these winning slacks.

Is the zebra skin also an Eastman polyester fiber?