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.
  • Rugged 840D ballistic nylon with triple-layer coating resists water and abrasion.
  • Full clamshell opening plus side and top access for fast packing and unpacking.
  • 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.
  • External grab handles for easy lifting from overhead bins or car boots.
  • Customise with modular add-ons like a toiletry pouch, tech organiser and compression wardrobe.

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

Customer Reviews

Based on 4 reviews
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N
Neil P.
I already own a Mous

I already own a Mous Protective Lid backpack with 23 litres capacity which I use every day. Having just retired I wanted the same quality and design characteristics but with more volume that works better for me for short trips away. The Mous Travel backpack at up to 45 litres capacity satisfies my requirements. I love the design features and have added the accessories - compression wardrobe, toiletry, tech and document pouches to maximise the benefit in use. I’m super happy with the purchases that provide a premium quality product that hits the mark in both form and function.

M
Mark G.
Another excellent product from Mous

Another excellent product from Mous

M
Michael S.
This is the best travel

This is the best travel backpack I’ve ever owned.

I already have three other Mous bags, plus the travel pouches, phone cases, and a few other bits. Every single item has held up brilliantly.

This one tops them all.

Perfect design. Comfortable to carry. Smart compartments. Build quality that makes other brands feel like knock-offs.

I wouldn’t travel with anything else now.

Mous continues to smash it. Nothing I’ve bought from you has ever disappointed.

You’ve nailed it. Again.

M
Mr V.
Padding should be a softer

Padding should be a softer as it hurts my back after wearing in for a long time on my motorcycle. It should be more flexible.