81 percent of Americans believe workplace attire has become more casual across the board in the last decade—and only one in five US workplaces (20%) still enforce a dress code.

That's according to a new poll that found that half of workers follow a casual or smart–casual dress code at work, allowing for jeans and other dress-down items in the office.

23 percent consider the rules at their offices to be ‘mostly smart', but still make allowance for casual touches.

The findings were uncovered as part of a larger study into the prominence of denim across the globe, both at home and in the workplace.

The global fashion search platform Lyst, commissioned the poll as part of their comprehensive assessment of denim in 2019 – ‘The Denim Report'.

"As work hours have increased and the ‘always on' culture has come to prominence thanks to developments in tech and connectivity, the lines between our work lives and our home lives have blurred," said a spokesperson.

"Work is no longer siloed off from the rest of our lives, and therefore it is right that the rules around dress codes in the workplace have become more relaxed.

"Jeans are synonymous with style, practicality and comfort, and have successfully bridged this gap between casual wear and workwear."

Eighty four percent of the 2,000 adults surveyed believe their jeans are a key component of their style, owning nine pairs on average – four of which they regularly wear.

And seven in 10 Americans have owned a pair of jeans which was ‘perfect' for them with regards to fit, style and wash.

The research, conducted by OnePoll.com, also found that a denim jacket hangs in half of all wardrobes across the country. Two in five Americans own a denim shirt, and one in four have a denim skirt in the drawer.

Daisy Duke in her ‘Daisy Dukes' from ‘The Dukes of Hazard'

James Dean in his Levis

Jennifer Lopez in Denim boots

Brooke Shields in the Calvin Klein ad

Princess Diana in Denim overalls

Britney & Justin on a denim date at 2001 American Music Awards

and Bruce Springsteen on the ‘Born in the U.S.A.' album cover