KROSER School Laptop Backpack (up to 17.3 inch) with USB charging port, headphone interface and RFID pockets
Product description
The essentials
A good laptop backpack is one of those purchases you only really notice when it goes wrong: the wrong size makes commuting annoying, awkward compartments slow you down, and flimsy padding can feel like a risk. The KROSER School Laptop Backpack is designed around practical daily use and travel, with a large layout that’s meant to fit up to a 17.3 inch laptop, plus space for the usual extras like an iPad, A4 files and power accessories.
On paper, it’s trying to cover the essentials many people want in one bag: water-repellent outer fabric, padded protection for your laptop, a trolley strap for travel, and added touches like RFID pockets, a built-in USB port and a headphone interface. It’s not pitched as a minimalist bag or a premium “tech organiser” system, but it looks like a solid everyday commuter/work/travel backpack in the larger category.
If you’re choosing between a smaller school bag and a bigger travel-style laptop backpack, this one clearly leans into capacity and compartment separation.
Key features that matter day to day

The backpack uses water-repellent poly fabric, which is a sensible choice for UK-style “not quite raining, not quite dry” commutes. It’s built to take a 17.3 inch laptop, and there’s a well-padded foam area specifically for the computer, plus an organiser section intended to keep smaller items from turning into one big rummage.
The compartments are separated, so you’re not forced into a single storage void. You can store things like an iPad, power bank, wallet and pens, and still have room for A4 files and even clothes if you’re packing for a day away. That kind of layout matters if you regularly split work and personal items, or if you carry documents alongside electronics.
Two features stand out as “designed for modern commuting”: RFID pockets and a built-in USB charging port. The RFID pockets are intended for identity protection, helping safeguard data encoded on many IDs, credit cards and passports. The USB port is convenient for charging your mobile phone from a connected power bank (power bank not included), and the headphone interface is there so you can listen to music without constantly opening the main pocket.
Worth noting: the USB charging is only as useful as your power bank setup, so if you often forget accessories, you may find yourself relying less on the port.


What you’ll notice when travelling or commuting

This is the type of backpack that’s meant to feel stable and comfortable over longer stretches. There’s an air-flow back padding system with a back panel that sits close to your body, and adjustable shoulder straps for a better fit while walking.
For travel, the luggage strap is handy. It’s a well-knitted strap designed to secure the backpack onto the trolley of your luggage, which can make train, airport and bus journeys more manageable.
There’s also a secret pocket on the back for added security. That’s the sort of feature you appreciate once you start using it—small items like documents can stay where you expect them instead of floating around in the main compartment.
Size, weight and carry comfort
The stated dimensions are 18.5” x 13.5” x 9.1”, and it’s designed to fit up to a 17.3 inch laptop. The weight is listed as 2.98LBS, which is fairly typical for a larger laptop backpack with padding and extra compartments.

It’s not the kind of bag you’d pick if you want something ultra-light and packable. If you’re carrying a heavier laptop and a full set of daily items (files, charger, maybe a change of clothes), this size and padding-focused approach makes more sense.
If you’re planning to travel with it, the trolley strap plus the ventilated back padding are the practical reasons this model is designed the way it is.
Who it’s for (and who should look elsewhere)


It’s a good fit if you want a single backpack for college, travel, business and everyday use, especially if you carry a 17.3 inch laptop and also need room for A4 files and smaller accessories. The RFID pockets and the security-style secret back pocket also suit people who like a bit of extra peace of mind on public transport.
It may not be a great match if you mainly carry a much smaller laptop and want a lighter, simpler bag—then the size and weight can feel like overkill. And if you don’t use a power bank (or you forget it often), the USB port becomes more of a nice-to-have than a real advantage.

Quick comparison mindset (so you buy the right kind)
This backpack is clearly aimed at the “large capacity laptop bag” approach rather than a slim, minimal carry. The separated compartments and organiser sections point towards people who prefer to store items by type (documents separately from electronics), while the trolley strap and secret pocket lean into travel use.
If your main goal is maximum portability and minimal bulk, you’ll probably find smaller options suit you better. If your main goal is fitting a larger laptop safely while still carrying documents and daily essentials, this one’s layout is closer to what you’ll want.
Tech summary
- Type: Laptop backpack / daypack
- Size: 18.5” x 13.5” x 9.1”
- Laptop support: Fits up to 17.3 inch laptop
- Weight: 2.98LBS
- Material: Water-repellent poly fabric
- Added storage features: RFID pockets, secret back pocket
- Charging/audio: USB charging port (power bank not included) and headphone interface
- Carry/travel: Luggage strap for trolley use
- Comfort: Air-flow back padding system and adjustable shoulder straps

Is it worth it?
Buy it if you need a larger backpack that fits up to a 17.3 inch laptop and you’re after everyday structure: separated compartments, padded laptop protection, water-repellent fabric, plus travel-friendly touches like the trolley strap and a secret pocket. The RFID pockets and the built-in USB port/headphone interface are useful extras if you already carry a power bank and use a wired headphone setup.


Skip it if you’re after something slim and lightweight, or if your laptop is significantly smaller and you don’t need that extra capacity. It can feel like more bag than you need.
Frequently asked questions
Will the USB port charge a phone by itself?

No. The USB port is described as a way to charge your phone by connecting a power bank, and the power bank is not included.
Does it protect identity data?
The RFID pockets are intended to provide identity protection by helping safeguard data encoded on most IDs, credit cards and passports.
Is it suitable for A4 documents?
Yes—there are compartments/pockets designed to hold A4 files along with smaller items like pens and wallets.
How is it for travelling with luggage?
It includes a luggage strap designed to fix the backpack onto the trolley of your luggage, which should make airport and station journeys more straightforward.
What’s the stated comfort feature?
It uses an air-flow back padding system with a well-padded back panel and adjustable shoulder straps for comfort during carrying.
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