was estimated at $100 million (equivalent to $ million in ). In 1978, Klein claimed sales of 200,000 pairs of his famous jeans the first week they were on the market. By 1981, Fortune figured Klein's annual income at $8.5 million. In the mid-1970s, he had created a designer-jeans craze by putting his name on the back pocket. Klein's design assistant at the time, Jeffrey Banks, has claimed credit for the logo garments, stating that he had the logo from a press folder silkscreened onto the sleeve of a brown T-shirt as a present for Klein. The gift was assumed by Schwartz to be part of the upcoming line, and similar logo shirts formed the uniform for the front-of-house staff at Klein's next catwalk show, leading to buyer demand. In the late 1970s, the company also made attempts to set up its own fragrance and cosmetics lines, but soon withdrew from the market with big financial losses. 1980s In the 1980s, as the designer-jeans frenzy reached its all-time high, Calvin Klein introduced a highly successful line of boxer shorts for women and a men's underwear collection which would later gross $70 million in a single year. The American market of men's underwear was changed – from one where most men's underwear was white, purchased in packs of three by a "wife, mother or girlfriend when they needed to be" to one where "the American male [cares] about the brand of something few ever see". Growth continued through the early eighties. The licensing program, which brought in $24,000 when it was initiated in 1974 (), had royalty income of $7.3 million ten years later (equivalent to $ million in ). That year, worldwide retail sales were estimated at more than $60 million (equivalent to $ million in ). Klein's clothes were sold through 12,000 stores in the United States and were available in six other countries through licensing deals, namely Canada, the United Kingdom, Ireland, Australia, New Zealand, and Japan. His annual income passed $12 million (equivalent to $ million in ). Financial problems increased pressure from all sides, disagreements with the licensee of the menswear line and its disappointing sales as well as an enormous employee turnover both within Calvin Klein and its licensing partners led to the first rumors that Calvin Klein Industries, as the company had been known by then, was up for sale. And indeed, in late