Cathay Pacific flight attendants are asking the airline to redesign its uniforms for women, which they say are too revealing and may provoke sexual harassment.
The union representing cabin crew complains that the blouses are too short, showing off flesh when the attendants bend down to get items out of a food trolley.
The Flight Attendants Union (FAU) also says the skirts of the uniforms, introduced in 2011, are too tight-fitting, but says management has so far rejected its pleas for a modesty makeover.
FAU honorary secretary Michelle Choi said: "The blouse is too short and does not cover enough. Whenever a flight attendant bends down, her waistline is exposed.
"We believe the company intentionally does this to make us look a bit sexier and to let the passenger see more."
Choi said she believed the too-revealing uniforms were contributing to an apparent rise in incidents of sexual harassment of cabin crew by passengers, which she now estimates to affect each cabin crew member on one in every 10 flights.
"Some of the Marco Polo Club [frequent flier] members think they can do things to us because they are privileged and we somehow allow it. That is very bad.
"They think it is part of their privilege … Afterwards, they believe they can apologise and everything is settled."
Choi added: "When you report it to the flight manager, they always say it is the crew member's decision whether or not to call the police. They tell you, 'It's your decision. Do you want to delay the flight by calling the police?'
"That puts stress on the flight attendant and it is sad the company is not actively supporting and protecting us in cases like this … [Inflight managers] should be trained to have a stronger mindset to protect the crew."
Choi called for the company to issue specific guidelines on how to deal with instances of harassment on flights.
The FAU had passed on complaints from its members, she said, but no action had been taken to adjust the uniforms. The matter is expected to be raised during a meeting with management on May 13.
In a written response, Cathay Pacific said it had modified the design of the uniforms in response to staff feedback prior to the official launch in 2011.
"We welcome feedback from the crew and certain modifications have also been made, including the length of the blouse and the tightness of the skirt.
"Crew are welcome to exchange their uniform any time if they feel the fit is not right."
On the issue of harassment, the company said: "We do not tolerate any form of harassment and take the issue of sexual harassment very seriously."