TRYING to decide what to wear on a flight to be comfortable can be difficult.
One think you might want to leave at home, however, are black socks.
Flight attendant Kris Major, who has worked for 25 years as crew, gave some of his top tips of how to sleep on a plane.
But wearing dark socks could cause you problems if you fancy stretching out during the night.
He told CNN Travel: "On a night flight particularly, if you put your feet in the aisle and you’ve got dark socks on, we won’t see you, and we’ll trip over you.
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"it’s a bit of a nuisance for us.”
The Sun's resident flight attendant backed this up.
They previously said: "If you're stretching your feet out into the aisle and we're pushing a trolley through, you're going to end up getting run over - and that's your fault, not ours.
"You know trolleys are pushed through there and if one of them comes into contact with your feet, you'll definitely know all about it."
But if you're wearing brighter socks, don't worry about taking your shoes off, Kris said.
Despite it being a controversial topic regarding passengers who take their shoes off, the flight attendant said crew often do it too.
He added: "It’s the right thing to do if you’re going on a long-haul flight,” he says.
“One would hope that you’ve had the common decency to have a bath or a shower and put clean socks or stockings or tights on before you get on the aircraft."
If your feet smell, he said, then that's when it becomes an issue.
And what is a huge no-no is taking off both your shoes and socks.
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Last year, two passengers were told off by flight crew after taking off their shoes and being completely barefoot on the plane.
And not only is it considered disgusting by other passengers, it could be a safety risk too.
Ex-cabin crew member Tony Kuna said: "During an emergency, all sorts of debris and unpleasant ground surfaces will block your way towards the exit, as well as outside the aircraft.
“If your feet aren’t properly covered, you'll have a hard time making your way to safety."
For this same reason, there are a number of shoes you should never wear onboard too.
This includes flip flops and high heels, according to crew.
The best kind of shoes? Sensible ones that you can run in, such as trainers.
However, here's why trainers are not a good reason for the airport.
