1 / 7Yankony Expandable Underseat Travel Backpack, 45 × 36 × 20 cm
The Yankony expandable underseat travel backpack is listed at 45 × 36 × 20 cm before expansion, with a zipped gusset that increases its depth to 25 cm. It combines a padded laptop compartment with travel pockets, but expansion may take it beyond some airlines’ underseat limits.
At a glance
- Front and concealed rear pockets, multiple internal compartments and a stretch side pocket provide separate places for travel essentials.
- The listing describes a padded compartment for a 17-inch laptop and water-resistant fabric intended to protect against light rain and splashes.
- Contoured padded shoulder straps and an air-mesh back panel are listed for carrying comfort.
Pros and cons
Pros
- The unexpanded listed dimensions are suited to buyers seeking a compact underseat-style bag.
- The expandable gusset offers more packing room when airline size limits permit.
- A dedicated padded laptop compartment and several external and internal pockets support commuting as well as travel.
Technical specifications
8 specifications| Dimensions before expansion | 45×36×20cm |
|---|---|
| Expanded dimensions | 45×36x25cm |
| Expandable gusset | 5cm |
| Additional packing space claim | roughly 25% extra packing space |
| Laptop compartment size | 17-inch |
|---|
| Fabric | water-resistant fabric |
|---|---|
| Shoulder straps | padded shoulder straps |
| Back panel | breathable back panel features air-mesh channels |
What to know before buying
Listing details to confirm
The listing says 45×36×20cm before expansion and 45×36x25cm expanded, and claims a 17-inch laptop compartment, but does not give the compartment’s internal dimensions. It describes the bag as Easyjet underseat-compatible while also warning that expansion may exceed some airlines’ limits. Confirm current airline rules and keep the bag within the applicable limit.
Who is it for?
A good fit for
- Travellers wanting an underseat-style backpack that can expand when extra depth is acceptable.
- Commuters who want a listed 17-inch laptop compartment and organised pockets.
Less suited to
- Travellers who need the expanded bag to remain within every airline’s underseat size limit.
- Buyers who require confirmed internal laptop-compartment measurements.

Customer reviews on Amazon
- 5 stars
72% 72% - 4 stars
23% 23% - 3 stars
3% 3% - 2 stars
2% 2% - 1 star
0% 0%
Aggregate ratings lean strongly towards four- and five-star responses, but they do not explain what customers liked or disliked. With no review-summary evidence supplied, they cannot establish opinions about the expansion, airline fit or laptop compartment. Treat those as listing claims and check the size against your intended use.
Frequently asked questions
What size is the bag before and after expansion?
The listing gives 45×36×20cm before expansion and 45×36x25cm when expanded. It warns that the expanded size may exceed some airlines’ underseat limits.
Does it have a laptop compartment?
Yes. The listing claims a padded 17-inch laptop compartment, but does not provide its internal measurements.
Is the fabric waterproof?
The listing calls it water-resistant and says it is intended for light rain and splashes. It does not claim that the bag is waterproof.
























