Male employees are now permitted to wear makeup and have long hair thanks to a relaxation of the airline's gender-based uniform rules by Qantas of Australia.
Female employees won't be required to don makeup and high heels while on the job, per the company's new style manual.
An Australian trade union requested that Qantas update its "uniform policy into the 21st Century" last year.
Virgin Atlantic adopted gender-neutral uniforms in response to rival airlines loosening their regulations.
The same types of jewelry, including big watches, will be acceptable for both men and women to wear, in addition to flat shoes.
In accordance with the new regulations, all employees—including pilots and flight attendants—may have long hair as long as it is pulled back or up in a bun.
According to a statement released by Qantas on Friday, "Fashion changes, and over time, so have our style guidelines.".
We're proud of our diversity, and we've updated our rules, it continued.
Employees of Jetstar, a discount airline owned by Qantas, must also abide by the new regulations.
It was a "big win for workers," according to Imogen Sturni of the Australian Services Union (ASU), which had pushed Qantas to alter its uniform policies.
Some of the dress code requirements, like makeup guidelines and the mandate that women wear watches that are smaller than those worn by men, were borderline absurd, Ms. Sturni told the BBC.
However, as per the new rule, Qantas employees must still cover tattoos. The regulations also outline which uniform components can be worn together, such as mandating the wearing of stockings or tights with skirts.
After some other airlines loosened their uniform policies, Qantas made its announcement.
Virgin Atlantic, a UK-based airline, announced in September that it would adopt a "fluid approach" to uniforms, allowing employees "no matter their gender" to choose what they wore to work.
The airline subsequently clarified that the policy did not apply to the staff traveling with the England football team to the World Cup in Qatar, a country that has come under fire for its treatment of LGBT people.
Virgin claimed to have implemented the measure in the UK, US, and Israel at the time because those countries "allow more self-expression for non-binary identities.".
To allow "employees to express their individuality and cultural heritage," Air New Zealand lifted a ban on employees sporting visible tattoos in 2019.
For ancestry and heritage marking, some New Zealanders with Maori ancestry have tattoos.
