
Notes from Sarah Giblin, RiutBag designer:
New estimated RiutBag release date:
Leaving UK warehouse circa 15 August 2025
USA customers: please note RiutBags are hand made in China. Please take this into account in the light of your country's current tariff policy.
23 June 2025: Military activity is impacting our shipping routes. Our vessel is likely to avoid this region, taking the longer route around Africa to get to England. We are working with the shipping company to get a new estimate for the date we ship: currently estimating 15 August 2025. My sincere apologies for the delay and the uncertainty.
10 June 2025: The quality of the production is looking fantastic today at the factory. Join me online to see the production in progress: https://linktr.ee/RiutBag
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3-in-1 Capacity to Suit Any Trip
The RiutBag X35.3 is the ultimate backpack for super commuters and international travellers, meticulously designed to provide versatility, security and comfort in your changing journeys through the day, month and year.

This latest version builds on RiutBag's renowned security features, with increased capacity up to 37.5 litres and larger laptop compartment size. Whether you're navigating through airports or commuting in busy cities, this expandable backpack ensures that your laptop and essentials are protected, all while offering the flexibility to adjust capacity on the go.
Key Features and Benefits
Secure and Adaptable Design
- Three Configurable Sizes: Transform the backpack from a 20-litre compact size to a 37.5-litre full capacity in seconds. Ideal for flying, work trips, daily commutes with gym clothes, and anything in between.
- Advanced Anti-Theft Protection: The X35.3 features zippers positioned securely against your back, ensuring your valuables are protected from theft in crowded spaces.
- Airline-Friendly: Soft pack cabin luggage can be changed, expandable design fits different airline cabin luggage requirements, making it your perfect maximum carry-on companion.
- Durable Construction: Built from high-grade, waterproof 1000D Cordura with a reinforced TPU base to withstand all travel conditions.
Enhanced Laptop and Gadget Protection
- Suspended Laptop Compartment: Safeguard your laptop with a padded neoprene sleeve that shields against shocks and drops. Accommodates laptops 13" to 17", with max laptop dimensions of 42 cm x 27.5 cm x 3.5 cm.
- Double laptop compartment: Carry two laptops, a laptop and tablet, and include your full-length wireless keyboard in the zipped tech compartments.
- Focused Storage: Includes stretchy water-bottle holders and multiple organisational pockets for laptops, tech, accessories, gadgets, as well as a spacious main compartment for full trip travel essentials.
Optimised for Global Travel
- Multiple Organisational Compartments: Keep your laptop and packed items separate, including a quick-access top pocket and a hidden D-pocket for passports and valuables.
- Comfortable Carrying Experience: Ergonomically designed with adjustable, padded shoulder straps and an optional modular waist strap, ensuring maximum comfort during extended use.
- Sleek and Minimalist Aesthetic: The RiutBag X35.3 maintains a black exterior for a sophisticated, understated look, while the bright blue interior helps you quickly locate your belongings.
Specifications
- Maximum Laptop Dimensions: 42 cm x 27.5 cm x 3.5 cm
- Compatible Laptop Sizes: 11 inch, 13 inch, 14 inch, 15.6 inch, 17 inch
- Colour: Black exterior, blue interior lining
- Capacity: 20 litre (compact), 30 litre (medium), 37.5 litre (maximum)
- Weight: 1.4 kg
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Dimensions:
- Compact Mode: 50 cm height x 39 cm width x 10 cm depth (top) / 16 cm (base)
- Medium Mode: 55 cm height x 39 cm width x 20 cm depth (top) / 16 cm (base)
- Max Mode: 55 cm height x 39 cm width x 25 cm depth (top) / 16 cm (base)
- Materials: Waterproof 1000D Cordura outer shell, reinforced padded TPU base, YKK zips, padded neoprene laptop sleeve, EVA and foam padded straps.
Unique Selling Points
- Expandable Capacity: Seamlessly adjust the backpack size to match your needs, from daily use to extended travel.
- Revolutionary Security: The reverse-zipper design offers enhanced protection, keeping your belongings safe and secure.
- Designed for Travellers: Developed with input from frequent travellers to meet the demands of modern international journeys IRL.
- Spacious Yet Compact: The X35.3 provides ample room for all your essentials without compromising on a streamlined, compact design.
- One Carry-on Bag for Ryanair and EasyJet dimensions: Pull in the side snap fastenings to fit Ryanair's large cabin bag. Release the side snap fastenings to fit EasyJet's cabin bag allowance.
Words From the Designer
"The original idea for the RiutBag X35 range came from user feedback. It read: "I wish my bag could be bigger when I need more space and smaller when I need less." I smiled reading this, thinking it was an impossible request. Yet, through an accident of prototyping, I realised that I could do it. It's all about the buckles and folds.
So thanks to my RiutBag users who challenged me to make shape-shifting backpacks, the RiutBag X35.3 now exists for my fellow frequent flyers and super commuters. Whether it's for work, to travel for pleasure or every journey between. You can change your RiutBag X35.3 to become the bag you need it to be in seconds."
Sarah Giblin, RiutBag Designer
Customer Reviews and Testimonials
"I've been using RiutBags for years, and my new super commute means I'm finally ready for the X35.3 . It’s incredibly well-designed for travel, and I love the expandable capacity." – Jade G.
"The RiutBag X35 is my go-to travel backpack. The security features give me peace of mind given the tech I carry, and the adjustable size is perfect for every trip." – Alex T.
Expanding RiutBag X35.3: How To
Your RiutBag X35.3 arrives folded in compact mode. Push out the base to use in compact mode. To expand to medium mode, unclip the top buckles, take the handle and give it a shake to get the top to come up. To expand fully to 37.5 litres, undo the side snaps.
Compacting RiutBag X35.3: How To
From maximum size, pull in each side snap fastening to return to medium mode. To get to compact mode, unclip all top buckles and push the top back corners into the top of the RiutBag. Allow the folds from the side snaps to form two arrows inward. Connect the outer front buckles with the strap buckles.
The backpack’s materials are designed to fold and adjust. The main compartment, accessible via double zips in the back panel, opens like a suitcase for easy packing in compact, medium and maximum mode.