As you may be aware these days there is not a 'one size fits all' as far as Carry On Cabin Luggage is concerned.
easyJet for the majority of 2015 had elected to use a size smaller than IATA, but for the last few months they have re-adopted the 46x45x25cm maximum size for their Cabin Bags. However in increasing the maximum size easyJet no longer guarantee that your Carry On Bag will travel with you in the cabin if the flight is particularly busy.
55x40x20cm, much smaller than easyJet and many scheduled carriers such as British Airways.
It pays to be alert if you're using more than one airline for your trip - always plan your Cabin Baggage on the basis of the smallest maximum size. Luggage UK have produced a helpful Guide to Carry on Cabin Luggage with links to the websites of the major airlines to help you identify your Cabin Luggage requirements. Order from us before 3pm on a weekday and as well as enjoying our Low Prices, deliveries are made next working day to most UK destinations without any extra charge.