# Yankony 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.

- [Original product page](https://bargainpostbox.co.uk/product/yankony-expandable-underseat-travel-backpack)
- [View offer](https://bargainpostbox.co.uk/visit/yankony-expandable-underseat-travel-backpack)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: Yankony
- Category: Fashion & Accessories > Bags & Luggage > Luggage
- Price: 19.92 GBP
- Previous price: 24.99 GBP
- Discount: 20%
- Price checked: 2026-11-13T05:54:56.059Z
- Rating: 4.6 / 5
- Reviews: 230

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## 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

- 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.

## Specifications

### Dimensions and capacity
- Dimensions before expansion: 45×36×20cm
- Expanded dimensions: 45×36x25cm
- Expandable gusset: 5cm
- Additional packing space claim: roughly 25% extra packing space
### Storage
- Laptop compartment size: 17-inch
### Materials and comfort
- Fabric: water-resistant fabric
- Shoulder straps: padded shoulder straps
- Back panel: breathable back panel features air-mesh channels

## Before you buy

- 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.

## 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 feedback

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.

## Images

![Yankony Expandable Underseat Travel Backpack, 45 × 36 × 20 cm — 1](https://bargainpostbox.co.uk/i/dEUJ4xEbiopOtT6Oga5fvZRfAIkYHAnUOtiSqasG7WROO4VyrS-7nY1OAVHCDWfFDW_msjI81Eef5gLWqXA8fea0ujBqbBnv_l0l5NmABgsCjyzixZ6R_Cab.jpg)

![Yankony Expandable Underseat Travel Backpack, 45 × 36 × 20 cm — 2](https://bargainpostbox.co.uk/i/CYSoUvL1gAx8tQB-L7UTbCfWqd4xm7YmP7XKGSjpT7ehrlLnFvZxOwb06n0qU1GH9HZsnEhH-8k63PyEuvVMeDUwWwx_XGz3HFJ5FZOibed-Y8o8wl1y1F_9.jpg)

![Yankony Expandable Underseat Travel Backpack, 45 × 36 × 20 cm — 3](https://bargainpostbox.co.uk/i/sdixKC_PE7fXwJpBAVA-sK8pE1zePEAm2cUiG6nrXPfqhK8pj87lhJdKzjZ-ALuxEC4MB7xAQES5zipkzHXHKvSkfVR1zmQ2AhS0jUTt0LX0baVHlhxzkMYG.jpg)

![Yankony Expandable Underseat Travel Backpack, 45 × 36 × 20 cm — 4](https://bargainpostbox.co.uk/i/sp5Qhat7nzlRokoWYaFa5wSZSnHOCpJ1O8hC6m3_6vrMWdxnnvsG3G5EgD1GmxBtQdBErP4bKd60EKEXduRvX9-QrUhMZ8WX8o5sxwPMVJ78aFZIZbeUn_cP.jpg)

![Yankony Expandable Underseat Travel Backpack, 45 × 36 × 20 cm — 5](https://bargainpostbox.co.uk/i/Yiojs-IViT9u4GwNt2EREZxPTf9Q-CizkhnEm9cHnLB53kaww3ac7YTPpes5L8NjJWeZdgznQHzyGWecFANXD4lFvdzCy6QFGJoBiByDH71DB0g2P-yQSqKS.jpg)

![Yankony Expandable Underseat Travel Backpack, 45 × 36 × 20 cm — 6](https://bargainpostbox.co.uk/i/NGYsN0imNMtgp47-_eLJcXLdx_uXFqLTYi_hh25XyBW3SH6EjZPaFa23TuDYKbzZxzuIWynTIqvPEor2DuwouNy8ge-iV6lRT1K_gWFwbe3Aa_rfGqMyEV0U.jpg)

![Yankony Expandable Underseat Travel Backpack, 45 × 36 × 20 cm — 7](https://bargainpostbox.co.uk/i/BSquIznvRUODDebyun5vS-TFLJcaMSHObnPt8ZONjZ4s4-aSMnFySxCWSQiWg929wL3GJSDNejxrNQh103B72qfiOIXjAGj65YSJBlU4Ow93pyadQPMDiS1V.jpg)