Underseat Cabin Bag 45x36x20 for EasyJet: Waterproof Travel Backpack with Anti-Theft Pocket and USB Port
Product description
If you regularly fly with a small cabin bag, the hassle is usually the same: squeezing everything in, doing security checks quickly, and hoping your bag doesn’t end up feeling flimsy after a couple of trips. This underseat cabin bag is built around that exact idea—fit the EasyJet-style cabin dimensions, stay organised on board, and add a few practical travel extras.
On paper it’s aimed at short breaks and frequent flyers who want something that sits under the seat or in the overhead compartment without playing packing Tetris all flight. It’s not trying to be a rugged hiking backpack, it’s more of a smart travel/work hybrid.
The essentials
This bag is sized at 45x36x20 cm, described as meeting EasyJet’s cabin baggage dimensions. It weighs 0.75 kg (as stated), and uses a 90–180° full-opening design to make security checks less painful. There are two main compartments for your travel essentials, plus a dedicated laptop sleeve for up to a 15.6-inch device. For wet items, it includes a high-density waterproof wet bag so you can separate things that are damp or messy.
There’s also an anti-theft back panel pocket for valuables, adjustable side compression straps to keep contents stable, and a luggage strap on the back panel for attaching to a rolling suitcase. An integrated charging port is included for powering devices while you’re on the move.

What matters most for travel days
The biggest “does this help me?” feature here is the size and opening. Underseat cabin bags can be frustrating when they’re awkward to rummage through during security. With a full-opening approach, you’re generally better set up to access what you need quickly.
The organisation is also a practical win: two main compartments makes it easier to separate clothes from everyday items, and the laptop sleeve helps keep your device from being buried at the bottom. If you travel with a laptop often, that’s one less thing to faff about when you’re packing and unpacking.
It’s also designed to stay tidy in transit. Compression straps can reduce shifting, which in turn can help keep zips and contents from getting strained as you move through airports.


And yes, the waterproof wet bag is the kind of small add-on that can be genuinely useful—think swimwear, a rain jacket, or anything you don’t want mixed with clean clothes.

Tech specs
- Name: Underseat Cabin Bag 45x36x20 for EasyJet
- Type: Underseat cabin backpack / travel rucksack
- Dimensions: 45x36x20 cm
- Weight: 0.75 kg
- Capacity: 40L
- Material: Water-resistant polyester (stated)
- Laptop sleeve size: Up to 15.6-inch laptop (stated)
- Opening range: 90–180° full opening (stated)
- Charging: Integrated charging port (stated)
- Waterproof separation: Included high-density waterproof wet bag (stated)
Where it stands out (and where it may fall short)
Where it shines is convenience within a strict cabin-bag mindset. If you want one bag that can do underseat storage, fit the stated dimensions, hold a laptop, and keep wet items separate, it ticks a lot of everyday boxes.
Where you should be a bit cautious: the description tells you it’s water-resistant via water-resistant polyester, but that doesn’t automatically mean it’s fully waterproof in every scenario. The included wet bag helps for specific “wet item” situations, yet if you expect heavy rain resistance as a guarantee, you may want to manage expectations.

Also, it’s clearly a travel-focused carry for cabin limits rather than a large-capacity expedition bag. If you’re the type who likes to overpack “just in case”, the 40L capacity (as stated) might feel tight once everything’s inside.
Who it suits—and who should skip it
It makes sense if you’re flying with EasyJet-style cabin requirements, want an underseat-friendly bag, and you carry a laptop plus a mix of travel essentials. The anti-theft back pocket is a reassuring touch for passports, cards, or other small valuables when you’re moving through busy terminals.


It might not be the best match if you need a bigger main compartment for longer trips, or if you’re chasing maximum weatherproofing beyond what’s described. And if you already have a dedicated laptop bag and a separate luggage system, this could feel a bit “all-in-one” when you only need one role.
If you prioritise fast access during airport security, this design is built for that. If you prefer minimalist, no-frills bags, you may find there are more features than you strictly need.

How to use it on real trips
A simple scenario: you’re on a short business trip. Pack your clothes and everyday items into the two main compartments, slide your 15.6-inch laptop into the dedicated sleeve, and keep any damp items (say, a rain-soaked layer) inside the waterproof wet bag. When you reach security, the full-opening design should let you lay things out without digging.
Once you’re airborne, the compression straps help keep everything settled under the seat, and the anti-theft back pocket gives you somewhere more secure for your passport or cards.
On arrival, the built-in luggage strap means you can clip it onto a rolling suitcase and get moving without juggling awkward straps.
Is it worth it?

Worth considering if you need a cabin-sized underseat travel backpack with a 45x36x20 profile, quick-access opening for security checks, laptop storage up to 15.6 inches, and a practical way to separate wet items. The included waterproof wet bag and anti-theft back panel pocket are the sort of details that tend to matter more the more often you travel.
You may want to skip it if you’re expecting strong, fully waterproof performance in heavy conditions, or if you routinely pack beyond what a 40L capacity can realistically handle. It’s a sensible “for the job” choice for short breaks, commuting days, or study/laptop carry—just don’t treat it like a weatherproof outdoor rucksack.


Quick FAQ
Is this designed for EasyJet cabin baggage sizes?
It’s described as matching EasyJet cabin baggage dimensions at 45x36x20 cm, with an underseat/onboard fit intended.

What fits in the laptop sleeve?
The laptop sleeve is stated to fit up to a 15.6-inch device.
Does it handle wet items separately?
Yes—there’s an included high-density waterproof wet bag for separating wet or damp items.
Does it have a way to charge devices?
The bag includes an integrated charging port, as stated in the description.
Is it fully waterproof?
It’s described as water-resistant polyester. It’s not described as fully waterproof, so the wet bag is the more specific solution for keeping damp items contained.
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