Our picks at a glance
Paid link: buttons go to the retailer. Prices change often, so we link to the current price instead of listing one.
Comparison table
| Feature | Best overallOsprey Farpoint 40 | RyanairCabin Max Metz 20L | ValueCabinZero Classic 36L |
|---|---|---|---|
| Verdict | Buy | Buy | Buy |
| Typical price | £150–£190 | £25–£35 | £60–£80 |
| Best for | Carry-on | Ryanair | Value |
| Key feature | Clamshell travel pack | Free under-seat size | Cabin-size backpack |
| Capacity | 40 L | — | 36 L |
| Size | — | 40 × 20 × 25 cm | — |
| Where to buy | Check Price Paid link | Check Price Paid link | Check Price Paid link |
Osprey · Travel backpacks
Osprey Farpoint 40
Clamshell travel pack.
- Buy it if
- you travel with carry-on only
- Skip it if
- you need under-seat size
Pros
- Clamshell
- Comfortable
- Carry-on
Cons
- Pricey
Key specifications
- Capacity
- 40 L
Cabin Max · Travel backpacks
Cabin Max Metz 20L
Free under-seat size.
- Buy it if
- you fly Ryanair
- Skip it if
- you need a big bag
Pros
- Fits under seat
- Cheap
- Light
Cons
- Small
Key specifications
- Size
- 40 × 20 × 25 cm
CabinZero · Travel backpacks
CabinZero Classic 36L
Cabin-size backpack.
- Buy it if
- you want value
- Skip it if
- you want a laptop sleeve
Pros
- Cheap
- Cabin size
- Durable
Cons
- Basic
Key specifications
- Capacity
- 36 L
Compare more Travel backpacks on Amazon Paid link
Who this list is for
Travel backpacks compared on capacity, organisation and carry-on compliance. We show what each model does best, what it typically costs in the UK and who should skip it.
How we chose
We compared manufacturer specifications, UK warranty terms, running costs and typical UK prices, then gave every product a clear verdict: Buy, Consider or Skip. Our verdicts are based on this research, not on lab tests we have not done.
What to look for
- Clamshell opening.
- Laptop compartment.
- Carry-on size.
Buying in the UK
Ryanair free under-seat bag is 40 × 20 × 25 cm.
Frequently asked questions
Can a backpack be my only cabin bag?
Often, yes.
Ryanair under-seat size?
40 × 20 × 25 cm.