Quick Summary
The Flex Waterproof Backpack is a laptop backpack and school rucksack with space for a 15.6″ laptop. It is described as suitable for business, school, college and travel use, and it includes a USB charging interface. Power bank not included.
The bag also has a multi-compartment layout with front and outer zip compartments, a padded laptop or tablet pocket, small slip-in pockets, two side pockets, padded shoulder straps, a padded back, a carry handle and a suitcase/trolley strap.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product type | Backpack / laptop backpack / rucksack for school, business and travel use. |
| Laptop size | Fits a 15.6″ laptop, so this is the key check for device size. |
| USB charging interface | Includes a USB charging interface; power bank is not included. |
| Compartments | Front and outer zip compartments, a main compartment, internal slip-in pockets and two side pockets. |
| Carry features | Padded shoulder straps, padded back, carry handle and suitcase/trolley strap. |
What to Compare Before Buying
- Laptop size: The stated fit is for a 15.6″ laptop. Check your device size before choosing.
- Organisation needs: This bag has multiple compartments and pockets, so compare that layout with what you carry each day.
- Travel use: The suitcase/trolley strap is useful if you plan to carry the bag with luggage.
- Charging setup: The USB charging interface needs a power bank, which is not included.
What Else You May Need
A power bank is needed if you want to use the USB charging interface.
Before You Decide
Check that your laptop is 15.6″ or smaller, confirm that the compartment layout suits what you carry, and remember that a power bank is needed for the USB charging interface.






