Recommendations for a Ryanair-sized Underseat Backpack

Ash_Pole

Please?

Preferably one that can be expanded slightly to the more generous Easyjet size.

kinger101

Cabin max have a pretty decent affordable range.  Not so sure about expandable, but you could get two or more of them compared to the price of some of the other brands.

n15h

I understand Ryanair have increased their bag size to 40cm x 30cm x 20cm. Lots of options on Amazon ranging from £10 - £30, including a few expandable options.

I bought a bag from Amazon some years ago for Ryanair's older (and smaller) size and never had any trouble with it when bag sizes were checked at the airport terminal. If it fits Ryanair, its more than likely going to fit most of the other airlines.

Savvy_Sue

Today's Rip Off Britain on BBC1 was dealing with carry-on bags this morning, but I don't recall any particular recommendations. Just 'be careful, everyone keeps changing the rules ... and even some which SHOULD fit 'the sizer', actually don't quite. Especially if it's fabric and you've overstuffed it.'

Glad

Primark
Small Suitcases & Cabin Bags | 10kg Suitcases | Primark UK

Dunelm
Luggage, Suitcases & Accessories | Dunelm

Both have exact sizes on the labels

Grumpy_chap

I purchased one of these https://www.amazon.co.uk/dp/B0CRTW64WY?th=1&psc=1 £13 currently.
I actually like it far more than the price point would suggest I should like it.
It is a very well-designed bag.

My wife purchased one of these https://www.amazon.co.uk/dp/B0BKJWY1HB?th=1 Rather more pricey at £18 currently.
She likes it but it is not my style.

dyl42

Bought this a few years ago https://www.amazon.co.uk/dp/B0C6SM19ZN?th=1 Lossga Designed for Ryanair Cabin Bags 40x20x25 from Amazon. It's been good but I don't love the top handle for carrying, too narrow and dig in with any weight, a standard single top handle would be better. There are a lot of similar options that will likely be presented. 

Later bought this going on EasyJet https://www.amazon.co.uk/dp/B0D7TQB8VS?th=1 ZHXX 45x36x20. Haven't used on RA so don't know how much it would be scrutinised - but it's soft sided so it should compress into the RA bag checker if you don't overfill 

strawb_shortcake

I've got one of the easyjet ones from Amazon similar to what's already been linked. 
Loads of pockets, and surprisingly roomy to pack a good few days clothes in

AspiringPensioner

Another vote here for Cabin Max backpacks which I think are mentioned above. My other half and I each bought one in quick succession in early 2023 and we have used them multiple times for trips. Dimensions 40 x 20 x 25 as per the Ryanair rules. It's soft sided rather than a hard shell case, so you do have to ensure you don't overstuff it (and thus exceed the max size) but we have never had a problem with airline staff. It seems to be well made and has a top handle as well as sturdy backpack straps which you can unclip and pack away when stowing neatly on the aircraft. I've found this to be a perfect size of bag to take plenty of stuff for quite a few days away, while not being TOO heavy to lug around on public transport etc. Not sure how waterproof it is but the fabric is thick. There's a useful padded laptop compartment too.

Currently £24.95 on Amazon which is a fiver less than I paid 3 years ago! 😂 » Amazon link

NoodleDoodleMan

That link is for the previous maximum size of cabin bag for Ryanair - the revised dimensions are 40x30x20.

Of course that Manhattan model will also meet the newer specification.