# Karactermania Mercury Backpack Nasa, 20 L Underseat Cabin Bag

The Karactermania Mercury Backpack Nasa is a 20-litre underseat cabin backpack with a laptop compartment and space-themed design. Its listing describes multiple compartments, a separate wet-item pocket and suitcase attachment, but airline size compliance and water protection should be considered in light of the specifications provided.

- [Original product page](https://bargaincloverdeals.com/product/karactermania-mercury-nasa-underseat-backpack)
- [View offer](https://bargaincloverdeals.com/visit/karactermania-mercury-nasa-underseat-backpack)
- Market: IE
- Language: en-IE
- Currency: EUR
- Brand: KARACTERMANIA
- Model: Mercury Backpack Nasa
- Category: Fashion & Accessories > Bags & Luggage > Backpacks
- Price: 50.50 EUR
- Previous price: 63.14 EUR
- Discount: 20%
- Price checked: 2026-11-13T12:44:26.841Z
- Rating: 4.7 / 5
- Reviews: 13

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

- Three compartments and a 180-degree opening are described for access to the interior.
- A padded laptop compartment is listed for devices up to 15 inches, with a padded pocket for a tablet or smaller accessories also described.
- The listing describes a waterproof wet compartment, a water-bottle side pocket and an exterior front pocket.
- A rear luggage strap can attach the backpack to a rolling suitcase, and the shoulder straps are reinforced with a chest strap.
- Four side straps are described as allowing volume adjustment.

## Pros

- The compartment layout and separate wet-item section can help keep damp belongings apart from the main contents.
- The luggage strap and chest strap offer two practical carrying options for travel.
- Listed at 0.74 Kilograms, it has a low stated empty weight for a cabin backpack.

## Cons

- The listed 20-litre capacity makes it a compact option rather than a high-capacity travel bag.

## Specifications

### Identity and capacity
- Brand: Karactermania
- Model: Mercury Backpack Nasa
- Colour: Blue Nasa
- Capacity: 20 Liters
- Age range: Adult
- Recommended use: Leisure
### Dimensions and carrying
- Listed dimensions: 25D x 20W x 25H centimetres
- Title size description: Underseat 40x20x25cm
- Weight listed: 0.74 Kilograms
- Straps: Adjustable shoulder straps reinforced with chest strap
- Shell type: Soft Shell
### Materials and protection
- Material listed: Polyester
- Lining: Polyester with printed design
- Water resistance listed: Waterproof
- Care: Wipe clean with a damp cloth and let air dry
### Storage and access
- Laptop size maximum: 15 Inches
- Pocket description: 7 pockets/compartments
- Number of pockets: 5
- Number of compartments: 3
- Closure: Zipper

## Before you buy

- The size information is inconsistent: the title calls it 40x20x25cm, while the listed item dimensions are 25D x 20W x 25H centimetres. The listing says it conforms to most airlines' carry-on rules, but this is not confirmed for any particular airline. It also lists five pockets, three compartments and a description of seven pockets/compartments, so verify the dimensions and layout against the selected listing before buying.

## A good fit for

- Travellers seeking a compact backpack with an underseat-style size description and suitcase attachment.
- Buyers wanting a padded laptop compartment, subject to confirming their device fits the stated 15-inch maximum.
- People who want separate storage for wet items and a water bottle.

## Less suited to

- Travellers who need a larger-capacity bag than the stated 20 litres.
- Anyone who needs verified dimensions for a specific airline or an explicitly confirmed waterproof rating for particular conditions.

## Frequently asked questions

### What capacity is listed for the Mercury Backpack Nasa?
The listed storage volume is 20 Liters.
### What are the stated dimensions?
The title gives Underseat 40x20x25cm, while the item-dimensions field gives 25D x 20W x 25H centimetres. These details conflict, so confirm the dimensions for the selected listing.
### What size laptop does the compartment accommodate?
The listing gives a compatible device size maximum of 15 Inches. Check your device's dimensions as well as its screen size before purchase.
### Does it have a separate wet-item compartment?
Yes. The description identifies a waterproof front compartment for separating wet items from the rest of the contents.

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## Images

![Karactermania Mercury Backpack Nasa, 20 L Underseat Cabin Bag — 1](https://bargaincloverdeals.com/i/ikyrFEWjW3BEthZcAP6d1e8PyrW_LmwUp1LjZvmedMxCHutvrATPyJdvKGsrAPWouuZBVowuMzkuHFjDV8pKaMSK35k6SHoVNv4Rx69QocTSkaaoyDYYsAb3.jpg)

![Karactermania Mercury Backpack Nasa, 20 L Underseat Cabin Bag — 2](https://bargaincloverdeals.com/i/AWH0w2vSACGEmv1VOBMbibRQu3DUtZmVzUDNmdU0VTweuGb4NRa0PEJO2TzHy7uHrxf6csOh1UF-Fzj7vG8io1uUT6kepYxVYRIjlUJry7JPzRHkgkeyS4Vi.jpg)

![Karactermania Mercury Backpack Nasa, 20 L Underseat Cabin Bag — 3](https://bargaincloverdeals.com/i/ths2qALrhoT527TRY_qMvd910bG-Q2OXwhMp15jqa3kipkgJkYPwaeXpsK5X3ssuf7vOGMLC0S6A2nPmgGpGG8TDl1CuUFkAwO88aDQSvTghq9aGs2DFkbal.jpg)

![Karactermania Mercury Backpack Nasa, 20 L Underseat Cabin Bag — 4](https://bargaincloverdeals.com/i/Q4kaN49itqKUAyN54vF9G0d1XqH_esvRF2ncfjUonIeVCaBrOPbmL2v-DnD8kWpg0F7y4BBbcKhPWlsoodyZzUTTxRQ_7X_Na6YH2sM6PZmwYlcehvzZnL_i.jpg)

![Karactermania Mercury Backpack Nasa, 20 L Underseat Cabin Bag — 5](https://bargaincloverdeals.com/i/7m4xbmZ3RIHLFNtTu4DM0aeDvmlbeS1yod2XXBGNjU3lmzoKajfEQt3V8cr888UfOrdEbqRD5YJhVlA1CiVve-2hU1MDHKySutP7q-ddvg-O96s_Dj9bPxaZ.jpg)

![Karactermania Mercury Backpack Nasa, 20 L Underseat Cabin Bag — 6](https://bargaincloverdeals.com/i/2dlf1uYdpE0KR49D03nNlJAP41133TEmUE4n_Y6zXVmxV36GF7UTqWIP3HPA-nspzpWSNuJLG_Xs0NUScbKAS7CWrFMCaSgyxvdnkempBu07roB39HaxXZ8C.jpg)

![Karactermania Mercury Backpack Nasa, 20 L Underseat Cabin Bag — 7](https://bargaincloverdeals.com/i/FPKIDza6HsuPc71i3EYdwbwfjqRnJUT-FdLlkx315xKpcJNu3_HszVMRK6sjde8ekxq6PZte8KzHHwJcYGwE5_NO6pBeAdW5J8Y7LV1FRbQlU3vHRABKHOxT.jpg)