Several videos show people demonstrating how much you can fit into the vests’ large pockets; packing them with clothing, toiletries and digital devices they could not fit into their carry-on bags.
“This is the best travel hack I have ever found,” said one traveller who packed her vest with spare clothes and socks.
Another video showed a person fit an impressive amount into the vest’s pockets including a laptop, portable speaker, gym kit, deodorant, bikini and wireless speaker.
As one can imagine, the vest isn’t about looking cool or keeping certain items close at hand while travelling. Instead, travellers say it allows them to skip the cost of a checked bag while still taking the items they need.
The tactic is especially helpful when travelling with a budget airline, which typically has very cheap airline tickets but charges a lot for additional bags.
Understandably, some travellers were hesitant about whether it would work.
In the past, similar “hacks” - such as the pillow trick - have gone viral on social media, only to later be criticised by travellers who tried it in real life and were called out by airport and airline staff.
So far, however, creators said staff at security and check-in desks have not stopped them.
The outfit may seem like overkill but, given rising baggage fees and reports that some airlines have cracked down on baggage restrictions, it makes sense.
Other tricks to carry on more include packing a neck pillow with items and wearing extra clothes under a large coat.
However, gate agents have been known to call out passengers they think are trying to carry on more than their fair share of luggage. In these cases, the traveller will be hit with an even higher baggage cost at the gate.