Dockers produced an advertising campaign in 2010 that tried to associate their khaki pants with manliness. They went overboard in trying to promote their particular definition of "manliness".†
Thomas G. Travison, Andre B. Araujo, Amy B. O’Donnell, Varant Kupelian, and John B. McKinlay. A Population-Level Decline in Serum Testosterone Levels in American Men. Journal of Clinical Endocrinology & Metabolism 2007 92: 196-202; doi:10.1210/jc.2006-1375 (FULL PDF)