In the 1950s the pants were called overalls of waite overalls & the teens started referring to them as jeans.  Then the bad-boy image with James Dean & Marlon Brando & schools banned them in class.  In 1960s to early 1970s, hip-huggers and bell bottoms became an anti-establishment statement.  Then 12 years ago khakis pushed jean sales down 3%. Now jeans are in colors & prints.  The was the last decline till now.  The “athleisure” is the biggest threat to jeans as it is a fundamental lifestyle change, according to Amanda Halley, associate clinical professor of fashion merchandising at LIM College in NYC.  “Everyone wants to look like they are running to the gym, even if they are not”.  Even “yours truly”, Carolyn Bain, Bain Real Estate wears yoga wear not only to exercise, but to run errands, to the grocery story and places she would never have worn them before!!