Casual Friday has become every day for investment banker-turned entrepreneur Dean Jones, and he's not alone as a new survey reveals the majority of professional men no longer wear a tie to work.

"I've got a drawer full of ties at home, sitting there like a relic of my past life," said Mr Jones, who in 2014 left a $300,000-a-year job at Deutsche Bank to focus on an online designer fashion rental business, GlamCorner, he'd started with his wife.