This lightweight Ryanair cabin bag fits under the seat and weighs just 0.65kg

Weighing just 0.65kg and measuring 40x30x20cm, the cabin bag is currently available for just £15.19 in a limited-time deal.

Usually priced at £18.99, it’s a 20% saving on the khaki-beige Classic version.

Designed specifically around Ryanair's 40x30x20cm free hand luggage allowance, the 24-litre bag is intended to fit under the seat while giving travellers space for their essentials.

The Amazon listing also says it is compatible with other airlines including easyJet, Wizz Air, Vueling and Eurowings, however, passengers should always check their own booking for the exact cabin baggage allowance before flying.

The lightweight construction could be particularly useful when you're trying to make the most of a limited cabin allowance. At just 0.65kg, the bag leaves more of the permitted weight available for the things you actually want to pack.

One five-star reviewer appears to have put that compact design to the test on a flight, saying: "Lovely little bag. It folds quite flat whilst being sturdy. It looks good & goes with any colour scheme and fit under the seat perfectly."

Despite its relatively small dimensions, the reviewer said they managed to fit a change of clothes, Kindle, travel documents, snacks and their handbag inside, adding that they were "very happy" with the purchase.

Organisation is another major feature, with seven functional pockets built into the design. There's a large front zipped pocket and a rear zipped pocket for easy-access items, alongside two small internal pockets, two elasticated side pockets and a waterproof wet pocket for damp belongings.

That could come in handy for swimming gear, toiletries or anything else that you don't want mixing with your clean clothes. The external pockets also mean you can keep travel documents or other essentials close at hand rather than opening the main compartment.

The bag has a puffer-style quilted design made from water-resistant nylon, with SBS zips and reinforced stitching and base.

The brand says the construction can handle up to 10kg of daily essentials, although the permitted baggage weight for your flight will depend on the airline and booking.

There are also four ways to carry it. A luggage sleeve lets you attach the bag to a suitcase handle, while a thickened handle can be used for carrying by hand. The detachable wide crossbody strap provides another option when you want to keep your hands free.

Beyond flying, the 24-litre bag is designed to double up as a weekend bag, overnight bag, gym bag, sports bag, hospital bag or even a camping and picnic companion.

At £15.19, the khaki-beige Miss Lulu cabin bag is currently 20% off its £18.99 price.

With Ryanair-friendly 40x30x20cm dimensions, a 24-litre capacity, seven pockets and a lightweight 0.65kg construction, it could be a useful option for anyone trying to maximise their free underseat allowance without carrying a bulky suitcase.