Major airline just quietly introduced new clothing ban for any passengers boarding their flights

Flyers with one particularly popular airline will have to watch what they wear from here on out.

The warning comes amid the introduction of a brand new set of travel restrictions, which disallows passengers donning 'lewd' and potentially-offensive clothing from flying.

Spirit Airlines is a US-based budget airline headquartered in Miami, Florida, which operates scheduled flights across America, as well as the Caribbean and South America.

In recent days, the largest low-cost airline in the States has made the decision to update its Contract of Carriage with specific reference to clothing and fashion choices permitted on board.

On Wednesday, their official rules and regulations quietly changed in a bid to avoid awkward or potentially heated confrontations with inappropriately-dressed holiday-makers.

Unfortunately for Spirit, however, some travellers caught wind of the discreet amendment - which discusses 'lewd' fashion-based infractions - and have since been discussing it online.

Amongst the latest are prohibitions against flying barefoot, or wearing 'inadequate' amounts of clothing.

Spirit Airlines have implemented some clothing restrictions (Kevin Carter/Getty Images)

With specific regards to the latter, the document lists examples such as 'see-through clothing; not adequately covered; exposed breasts, buttocks, or other private parts' as no longer being allowed.

Customers continue to don clothing - as well as body art - that could be interpreted as either 'obscene, or offensive in nature' could now also be removed from the aircraft.

The decision regarding potential offensiveness lies with airline crew, who have the right to ground passengers if they see it necessary.

Such was the case for 43-year-old Texas local John Carcia Jr, who intended to travel between Los Angeles and San Antonio last week wearing a hooded jacket that bore the phrase 'FVCK HATE WORLD TOUR'.

After being informed he wouldn't be permitted to fly if he continued to wear the outer garment, he told press: "It caught me, like, totally by surprise. Like, ‘Man, are you serious?'"

One man was removed from a flight for wearing an 'offensive' hoodie (Facebook/John Garcia Jr [JJ])

The father-of-four was reportedly ordered to remove the 'offensive hoodie' on the grounds that it bore 'obscene language'.

Despite Garcia eventually complying with the order, he was subsequently escorted off the plane.

Back in October, two other Spirit Airlines passengers were removed from a flight between Los Angeles and New Orleans for wearing cropped tops, which exposed vast proportions of their midriffs, and not given a refund.

Tara Kehidi and Teresa Araujo later told press: "It's just humiliating having to be escorted and treated like a criminal just because we were wearing crop tops.

It was such a dehumanizing experience. We wasted our time, other people's time, our money, our dignity."

Tyla contacted Spirit Airlines for comment.