Highlights
Product Details
Reviews
Travel Backpack
€319,99
Optimal

Travel Backpack

€319,99
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A high-performance carry-on backpack built for seamless travel. Expandable and ultra-durable, it's engineered for tech protection and seamless organisation.
Dimensions: H: 550mm x W: 350mm x D: 200mm (230mm when expanded)
Weight: 2.2kg
Volume: 40L, expandable to 45L
Cabin-size compatible with most major airlines
How protective is this backpack?
The Optimal Travel Backpack is built for serious protection. A separate tech compartment is equipped with AiroFoam® impact-absorbing technology, protecting laptops and tablets from drops and shocks. It's also highly water-resistant, keeping your gear safe from rain, spills and splashes – though we wouldn’t recommend submerging it in water. Whether you're caught in a storm or on the move, your tech stays protected.

Are the accessories included?
No, modular accessories like the Optimal Compression Wardrobe are sold separately. You can purchase them individually or as part of a bundle to customise your setup.

Can I use this backpack as a cabin bag?
Yes! At its standard 40-litre capacity, the Optimal Travel Backpack meets the cabin bag size requirements for most major airlines and fits in overhead bins. While we've thoroughly compared its dimensions with airline guidelines, we can’t guarantee compliance in every case due to airline-specific policies. It’s not designed to fit under the seat as a personal item.

Highlights

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Suitcase-style capacity
Expands from 40L to 45L and opens flat like a suitcase for easy, structured packing—minus the bulk and weight.
Engineered for endurance
Built from abrasion-resistant 840D ballistic nylon with a triple-layer coating to stand up to years of wear, water and weather.
AiroFoam® tech protection
Impact-absorbing AiroFoam® lines the tech compartment to shield laptops and tablets from drops and shocks.
25 storage solutions
From hidden passport pockets to mesh organisers and a 1L water bottle pocket, every item has a place.
Modular travel system
Compatible with Mous’ modular accessories – like the compression wardrobe – for a setup that flexes with your trip.
Multiple carry modes
Wear as a backpack or carry like a duffel with top and side grab handles. Stowable straps and removable supports ensure all-day comfort.

Product Details

A high-performance carry-on backpack built for seamless travel. Expandable and ultra-durable, it's engineered for tech protection and seamless organisation.

• 40L capacity expands to 45L for longer trips and max packing flexibility. Compliant with major airlines.

• Protective tech compartment with AiroFoam® absorbs shock from drops.
• Full clamshell opening plus side and top access for fast packing and unpacking.

• Zonal compartments keep work and gym gear separate, including a ventilated shoe section.
• Rugged 840D ballistic nylon with triple-layer coating resists water and abrasion.
• 25 smart pockets and compartments keep travel essentials organised and secure.
•
Multiple carry modes with stowable straps, sternum strap and hip belt for comfort.
• Luggage pass-through strap slots over suitcase handles for smooth airport navigation.

Backpack dimensions
Standard: H: 550mm x W: 350mm x D: 200mm
Expanded: H: 550mm x W: 350mm x D: 230mm
Weight
2.2kg
Capacity
40L standard, expands to 45L for extra packing space
Tech compartment
H: 540mm x W: 340mm x D: 20mm
Fits up to a 16” MacBook Pro, with or without a Mous sleeve
Suitable for all MacBook Air models
Laptop pocket (internal)
H: 350mm x W: 300mm
Fits all 14” and smaller MacBook Pro and MacBook Air models
Also compatible with iPad Pro 12.9” and all smaller iPad models
Tablet pocket (internal)
H: 290mm x W: 300mm
Airline fit
Compliant with most major airline cabin-baggage restrictions

Main materials

840D ballistic nylon: Highly durable and abrasion-resistant for long-term use.
Triple-layer PU and PC coating: Provides added strength and water resistance.
420D recycled nylon side panels: Lightweight and tough.
210D nylon lining: Smooth, protective interior.
AiroFoam® in tech compartment: A non-Newtonian, impact-absorbing technology designed to protect larger tech devices from drop damage. It’s made up of intelligent molecules that rush together upon impact, forming hydrogen bonds that temporarily break and consume significant amounts of energy that would otherwise impact your device.
PU-coated YKK zippers: Durable, smooth-gliding and water-repellent.

Certifications

RoHS and REACH compliant

25-year coverage under our Limited Lifetime Warranty

How protective is this backpack?
The Optimal Travel Backpack is built for serious protection. A separate tech compartment is equipped with AiroFoam® impact-absorbing technology, protecting laptops and tablets from drops and shocks. It's also highly water-resistant, keeping your gear safe from rain, spills and splashes – though we wouldn’t recommend submerging it in water. Whether you're caught in a storm or on the move, your tech stays protected.

Are the accessories included?
No, modular accessories like the Optimal Compression Wardrobe are sold separately. You can purchase them individually or as part of a bundle to customise your setup.

Can I use this backpack as a cabin bag?
Yes! At its standard 40-litre capacity, the Optimal Travel Backpack meets the cabin bag size requirements for most major airlines and fits in overhead bins. While we've thoroughly compared its dimensions with airline guidelines, we can’t guarantee compliance in every case due to airline-specific policies. It’s not designed to fit under the seat as a personal item.

Travel Backpack - Optimal
★★★★★
“I'm a big fan of Mous, I have their backpack, cases and accessories and they are all just amazing. The attention to details, functionality and durability to me is what Mous stands for.”
Reviews by Judge.Me
4.8/5
See All Reviews

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Customer Reviews

Based on 23 reviews
70%
(16)
22%
(5)
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(0)
4%
(1)
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(1)
C
C.B.H.

Fast processing and delivery. Great holding capacity, little on the heavy, but build quality is excellent

M
M.G.

An amazing piece of kit. The design is incredible. Fitted into the plane cabin easily. The amount you can store in there is testament to the excellent design. So easy to carry around as well. 10 out of 10.

S
S.S.

I cant get enough of it, huge storage, i can take all my winter gear (snow pants, jackets, thermals, jumpers) plus all my other clothes with shoes and my tablet. Stupid anount of space, the only thing i would change would be the space increaser zip, if it added just an extra 10L instead of 5 i would be able to take this hiking/camping

B
Brian M.
Too expensive, lack of transparency about VAT

You failed to make it clear that there would be additional VAT on top of the already high price. Not cool.

A
Antony M.
Mous travel backpack

Really good product, its a life time purchase. Buy once. Best 45L backpack ever. And if you are student you get. 15% discount!!!
I am not sure if they have repair services if something goes wrong, like other competitors offer. But if they do then don't need to second guess your purchase.

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