Shelley appeared in many ads during her tenure as a Supermodel, one of her earliest was for Kotex. Kotex is a brand of menstrual hygiene products which includes pads, tampons, and pantiliners. The brand is known for its focus on comfort and protection, as well as its variety of options. Catering to different needs and preferences, the products range from ultra-thin to maxi pads... from regular to overnight options. In 1971, Shelley appeared in an ad for Kotex which promoted "Kotex napkins with deep-downy Soft-Impressions." In the ad, Shelley was dressed in the hippie style, the newest look for young misses at the time. She wore a crop top over a pair of blue jeans. She finished her look with a pair of belts (one plain, one studded) and a pair of native American style fringed moccasin shoes. She accessorized her look with a scarf tied around her head and with beaded bracelets. And Shelley looked young, hip and 1970s chic. (For more, check out: 1967 Ad)