In a move more bold than their brightly coloured shirts, a Melbourne-based menswear brand is addressing the wage disparity to mark International Women’s Day.

Starting March 8, Mr Koya, a boutique brand that doesn’t shy away from making a statement, is raising the prices of selected shirts by 14 per cent for men only, to make light of the gender wage gap.

“The well-rounded man should not appreciate inequality,” Yema Akbar, one of the company’s three co-founders says.

View photos Mr Koya is upping the prices of some of their shirts encourage men to 'Wear the Gap'. Source: Mr Koya More

According to the Australian government’s Workplace Gender Equality Agency (WGEA), the wage gap between men and women continues to persist.

The latest figures show the national gender pay gap is 13.9 per cent, which is down compared to six months ago when the gap was 14 per cent.

However, Libby Lyons, Director of WGEA previously said the results are “disappointing”, as she would have liked to have seen the wage gap close a lot more.

“It is yet another indication that progress towards gender equality in our workplaces may be slowing. I am concerned that a degree of complacency is creeping back into the Australian business community,” she said in February.

“The danger signs are clear. I want to see far more action and accountability from employers and business leaders; we must pick up the pace to close the gender pay gap. Going backwards is not an option.”

The pay gap between men and women looks at the average earnings for each in the work force.

It differs from equal pay, which is when two people are paid differently for the same work, which is unlawful and has been since 1969.

“Mr Koya says the statistics speak for themselves, when it’s quite clear there’s a disparity, you can justify the reasons all you want, and if that means we have a discussion about why that’s the case and we raise awareness around that and have a bit of a conversation, then why not?” Mr Akbar told Yahoo News Australia.

View photos Men will have to pay an extra 14 per cent until the end of March, staring on International Women's Day. Source: Supplied/Mr Koya More

Mr Koya has been described as a “kind of mythical entity” and Mr Akbar said it was Mr Koya’s place to “step in when it’s the right thing to do”.

“You’ve got a 19 to 14 per cent gap in pay in the last 20 years between men and women. It’s an occasion when he [Mr Koya] would want to step in,” he said.

“Our audience is 95 per cent men, but it’s about extending what a shirt means to men and what it means generally.”

Mr Koya has been fighting injustice since 1905, allegedly.

Extra proceeds to go to woman’s charity

While men are encouraged to cough up and cop to 14 per cent increase in price and “wear the gap”, Mr Koya won’t be pocketing the extra cash.

The entirety of the additional money raised will be going directly to The Australian Inequality Council.

The anti-sale starts on International Women’s Day and continues for all of March.

Mr Akbar said the opportunity was merely an exciting way to be involved in something that matters.

“It’s not about creating a garment for the sake of it, it’s about creating something that matters and extending what a shirt might mean to someone,” he said.

This isn’t the first time Mr Koya has used its brand to get people talking. Last year, while Australia’s prime minister Scott Morrison jetted off to Hawaii while bushfires raged across Australia, Mr Koya announced the limited edition “Mahalo ScoMo shirt”.

The shirt, which oozed Hawaiian flair and featured Mr Morrison’s face, proved popular and all proceeds of the shirt were donated to the RFS.

In the end, Mr Koya ended up raising over $35,000 for the RFS and the shirt was memorialised by the National Library of Australia.

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