Shelley appeared on many ads during her Supermodel days. In 1971, she appeared in an ad called "Fortrel Motivates: The Suitables." It featured fun military-inspired suit-style fashions that were made by various designers and clothes manufacturers. They were all made from Fortrel, a polyester fiber. Polyester was a popular clothing fabric at the time because it didn't need to be ironed as it was wrinkle proof, was long-lasting and was cheaper that natural fabrics. In other words, it was a very practical fabric choice. In the ad, Shelley wore an outfit by Joey G for Smith and Jones. Shelley wore a schoolgirl dress that came with a matching jacket. The dress had a contrasting long-sleeved top with a Peter Pan collar and a matching tie. The skirt was knee length. The matching cardigan-style jacket was in the same fabric as the skirt, had long sleeves, a belt and contrasting buttons. A beret, knee-high socks and lace-up footwear finished her look. And Shelley looked chic, young and fab as always.
