What does and does not constitute appropriate clothing is a contentious issue. Generally speaking, most people know what is and isn't acceptable. Going to the store in pajamas isn't going to win you any brownie points if you bump into your boss, but no one is going to stop you unless you strut down the milk aisle in a thong.

And the issue has recently been brought to the fore of the public consciousness after a British woman was told to "cover up" after wearing a crop top on a flight from England to the Spanish island of Tenerife.

However, because 21-year-old Emily O'Connor didn't agree with the staff members' decision, she challenged it. This resulted in a 20-minute argument which saw her eventually put on a jacket.

Speaking to This Morning hosts, Holly Willoughby and Phillip Schofield, O'Connor said, "It's the principal. I wasn't wearing a jacket to flaunt or make a point, I wasn't wearing a jacket because I was hot."

"There was a man wearing a vest and shorts a few rows back and no-one was saying anything to him about his clothes."

In the aftermath of the incident, O'Connor posted a picture of herself in the crop top on social media to highlight how ridiculously she believed she had been treated by the airline.

Perhaps unsurprisingly, the majority of Twitter users were on the 21-year-old's side:

However, it was suggested that the airline had been forced to speak to her after another passenger complained:

In response, O'Connor said one person's complaint shouldn't have been enough to prompt the staff to speak to her, especially as in her interview with This Morning, she revealed that she'd asked if it was causing offense to the plane and no one said yes.

Thomas Cook subsequently issued a statement about the incident, saying: "We are sorry that we upset Ms. O'Connor. It's clear we could have handled the situation better.

"In common with most airlines, we have an appropriate clothing policy. This applies equally to men and women of all ages without discrimination. Our crews have the difficult task of implementing that policy and don't always get it right."

What does and does not constitute appropriate clothing is a contentious issue. Generally speaking, most people know what is and isn't acceptable. Going to the store in pajamas isn't going to win you any brownie points if you bump into your boss, but no one is going to stop you unless you strut down the milk aisle in a thong.

And the issue has recently been brought to the fore of the public consciousness after a British woman was told to "cover up" after wearing a crop top on a flight from England to the Spanish island of Tenerife.

However, because 21-year-old Emily O'Connor didn't agree with the staff members' decision, she challenged it. This resulted in a 20-minute argument which saw her eventually put on a jacket.

Speaking to This Morning hosts, Holly Willoughby and Phillip Schofield, O'Connor said, "It's the principal. I wasn't wearing a jacket to flaunt or make a point, I wasn't wearing a jacket because I was hot."

"There was a man wearing a vest and shorts a few rows back and no-one was saying anything to him about his clothes."

In the aftermath of the incident, O'Connor posted a picture of herself in the crop top on social media to highlight how ridiculously she believed she had been treated by the airline.

Perhaps unsurprisingly, the majority of Twitter users were on the 21-year-old's side:

However, it was suggested that the airline had been forced to speak to her after another passenger complained:

In response, O'Connor said one person's complaint shouldn't have been enough to prompt the staff to speak to her, especially as in her interview with This Morning, she revealed that she'd asked if it was causing offense to the plane and no one said yes.

Thomas Cook subsequently issued a statement about the incident, saying: "We are sorry that we upset Ms. O'Connor. It's clear we could have handled the situation better.

"In common with most airlines, we have an appropriate clothing policy. This applies equally to men and women of all ages without discrimination. Our crews have the difficult task of implementing that policy and don't always get it right."