Airlines are set to adopt a new rule on cabin luggage that will reduce the size of bags passengers can take on planes.

Aviation bosses introduced the guidelines last night and eight major carriers have already signed up, according to The Telegraph - with more expected to adopt the process in the coming months.

New carry on bag sizes:

• 55cm (21.5 inches) tall
• 35cm (13.5 inches) wide
• 20cm (7.5 inches) deep

The International Air Transport Association announced the measures at its AGM in Miami, saying that the new 'optimum' carry on bag size will clear up confusion and speed up check in.

However, passengers face buying new luggage as the new sizes are smaller than the restrictions currently imposed by many major airlines.

British Airways and easyJet's carry-on allowance is 56cm x 45cm x 25cm.
I haven't come across an airline yet that said this is a terrible idea

The IATA, which worked with plane makers Boeing and Airbus on the new sizing, said it is talking with major luggage brands, including Samsonite and Tumi, on producing bags in the new sizes.

Airlines that have already expressed an interest in imposing the new restrictions include Germany's Lufthansa, Emirates, Qatar and Cathay Pacific Airways.

The British Air Transport Association and airlines British Airways, easyJet and Ryanair have yet to comment on whether they will adopt the measures.

Sourcd: ITV