# Hauptstadtkoffer M5 M5040002 Underseat Travel Backpack

M5040002 Underseat: The Hauptstadtkoffer M5 is a compact travel backpack listed at 40 × 20 × 25 cm for under-seat use. Its listing describes two carrying options, a trolley attachment strap and a stated 20-litre packing volume, though the capacity fields conflict.

- [Original product page](https://bargaincloverdeals.com/product/hauptstadtkoffer-m5-underseat-travel-backpack-m5040002)
- [View offer](https://bargaincloverdeals.com/visit/hauptstadtkoffer-m5-underseat-travel-backpack-m5040002)
- Market: IE
- Language: en-IE
- Currency: EUR
- Brand: Hauptstadtkoffer
- Model: M5040002
- Category: Fashion & Accessories > Bags & Luggage > Backpacks
- Price: 41.30 EUR
- Previous price: 51.63 EUR
- Discount: 20%
- Price checked: 2026-11-13T12:44:56.008Z
- Rating: 3.8 / 5
- Reviews: 15

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

- The listing describes dimensions of 40 × 20 × 25 cm and positions the bag for under-seat travel, including Ryanair cabin-baggage use.
- It can be carried with padded, adjustable shoulder straps or as a bag with a removable shoulder strap, according to the listing.
- A rear strap is described for attaching the backpack to a trolley's telescopic handle.
- The listing claims 600 g weight and a 20-litre packing volume, but another capacity field says 10 litres.

## Pros

- Two described carrying configurations give the bag flexibility between backpack and shoulder-bag use.
- The trolley attachment strap can help keep the bag on a suitcase handle while travelling.
- Its listed 600 g weight is low for a travel bag, if the manufacturer's figure is accurate.

## Specifications

### Identity
- Brand: Hauptstadtkoffer
- Model: M5040002
- Size: One Size
- Colour: Dark Blue / Dark Grey
- Pattern: Solid
### Dimensions and carrying
- Listed dimensions: 25L x 20W x 40H centimetres
- Listed weight: 600 Grams
- Handle types: Carrying Handle, Telescopic Handle
- Strap type: Adjustable
### Materials and protection
- Material: Nylon
- Water resistance: Water Repellent
- Shell type: Soft Shell
### Capacity and organisation
- Capacity: 10 Liters
- Storage volume: 20 Liters
- Number of sections: 3
### Other listed features
- Special features: Foldable, Lightweight, Padded Strap, Tear Resistant, Tie Down Strap
- Wheel type: Spinner
- Lock type: Combination Lock

## Before you buy

- The capacity details conflict: the specifications list both 10 Liters and 20 Liters, while the feature text also claims a 20-litre packing volume. The wheel type, combination lock, telescopic handle and tie-down strap are listed, but their relevance to this backpack is unclear. The 40 × 20 × 25 cm size is a manufacturer claim, not confirmation of acceptance by every airline. Check the selected listing and your airline's current baggage rules.

## A good fit for

- Travellers seeking a small bag listed for under-seat cabin use.
- Buyers who want the option of shoulder-strap or removable-strap carrying and a trolley attachment.

## Less suited to

- Anyone who needs a confirmed capacity before purchase, given the conflicting 10-litre and 20-litre entries.
- Travellers needing a larger bag or confirmed acceptance across multiple airlines.

## Customer feedback

Aggregate ratings are mixed, with ratings spread between five-star and one-star categories. That offers limited guidance about practical details such as carrying comfort or capacity, so buyers should weigh the conflicting volume information against their intended use.

## Frequently asked questions

### What size is the Hauptstadtkoffer M5?
The listing gives dimensions of 25L x 20W x 40H centimetres and describes the bag as 40 × 20 × 25 cm for under-seat use. Check the airline's current rules before travelling.
### What is the stated capacity?
The listing is inconsistent: one field says 10 Liters, while another and the feature text claim 20 litres.
### Can it be carried in different ways?
The listing describes padded, adjustable backpack straps, a removable shoulder strap and a rear strap for attaching it to a trolley handle.

## Alternative options

- [Hauptstadtkoffer Unisex M3 Rucksack, Aquagreen, One Size, M3](https://bargaincloverdeals.com/visit/hauptstadtkoffer-m5-underseat-travel-backpack-m5040002)
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- [Hauptstadtkoffer blnbag M6 - Hand Luggage Travel Backpack 40 x 20 x 25 cm Ryanair Robust Backpack with Laptop Compartment, Aeroplane Underseater Backpack Carry-On 20 L](https://bargaincloverdeals.com/visit/hauptstadtkoffer-m5-underseat-travel-backpack-m5040002)

## Images

![Hauptstadtkoffer M5 M5040002 Underseat Travel Backpack — 1](https://bargaincloverdeals.com/i/Ppj_AJWjZSxd4Ixna7kdjb7hNq4cnAEPbuQcvnve0G0a9MWjVJN10ngB6ez_v32RQGrS3qnZ2AxaslWdIE-4lKME_sauH5rhREOq4E7wLz_EAdOrqRTTsM_h.jpg)

![Hauptstadtkoffer M5 M5040002 Underseat Travel Backpack — 2](https://bargaincloverdeals.com/i/uwh4mP-yRC7jxAwGUYUnwPneoJNuNQ70ZkyRddYqKnZx71tSGyKgXbx0ukGk5nGTRkqYBnjnGJPduN3SAawOjhjTnV4WXogUJKNmI8dI1lR4cmJGVNs3wKyv.jpg)

![Hauptstadtkoffer M5 M5040002 Underseat Travel Backpack — 3](https://bargaincloverdeals.com/i/odpjjTfO8naGXl17G87ivD8TXRW02602czndgP3SDEFryZ7uFpgmqz_GQ91ktePD0Gqv3ggjn5uuP9T3_G5CpKVODJsVS6bXDfMhZplgmihxMl7sVDBPYFHj.jpg)

![Hauptstadtkoffer M5 M5040002 Underseat Travel Backpack — 4](https://bargaincloverdeals.com/i/u2LvOJ0mYbRqs7_HAUP-dTolL20CkZpX8gmaM0UPJUsKQmc3ZTWispdyi4StuqHN47rKqD4eL5MDPkI3vPyKKLK_FNAYNiufWT9Ue6eSQidzLPYGDTLfTFqS.jpg)

![Hauptstadtkoffer M5 M5040002 Underseat Travel Backpack — 5](https://bargaincloverdeals.com/i/MXqAUhz8QxCIjjnJUrel2WK7G1XxaHvKDbrpRH3YTvEDOA2VTeYeHKXsuspx4n9VIUwZOwQL0eg2T8JBxycXHyWcU1nqAied6rlfakU50N2It3vNtne3dS5H.jpg)

![Hauptstadtkoffer M5 M5040002 Underseat Travel Backpack — 6](https://bargaincloverdeals.com/i/8YolVoXkRioGqhrcXIq7gn5NZDWY5eD6yGFL-D73cL2bhEB5FTLISdPpBG2bz-qiPB2xg2A-dIXBygF1AuEKJw8XztG1zHIitMK_2k87msOvuXCN38eB5qXr.jpg)

![Hauptstadtkoffer M5 M5040002 Underseat Travel Backpack — 7](https://bargaincloverdeals.com/i/gBKsDXWJMMRHJQakBrhWInkl-sXGxoAUiFFxLZfnSj0A6AbOkCYRKj204sBYqBhbuKLTAR90vA8YIjIwP1NSlO-UdHzzkzaUuEQnLtsBAwNwng1b7vgBACF0.jpg)