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Lundholm Underseater Waterproof Backpack - 15.6 inch Laptop Bag with TSA Lock
Meet the Underseater waterproof backpack from the exclusive collection by the Scandinavian brand Lundholm. This stylish, versatile backpack in elegant beige or black brings together Scandinavian design and hard-working functionality. Perfect for the modern traveler or professional on the move – for work, study or a flight. Thanks to the waterproof zippers and high-quality materials, your things stay dry and safe, even in an unexpected downpour. With its built-in TSA lock and smart suitcase-style layout inside, this is the ideal underseater for cabin baggage.
Benefits
This luxury backpack is designed with an eye for detail and everyday ease. Made from durable, fully waterproof material, it offers solid protection against moisture. The clever layout, inspired by a suitcase, with a padded 15.6 inch laptop compartment at the back, roomy sections and handy slip pockets, keeps everything organized. The compression straps on the sides let you cinch the bag down for a compact fit. With a security zipper for extra protection, a dedicated pocket for your water bottle and several zip pockets, this backpack is extra practical for daily use or travel. Thanks to its cabin-friendly dimensions, you take it on board without a second thought.
Specifications
- Made from high-quality, fully waterproof material
- Waterproof zippers for solid protection
- Padded laptop compartment for 15.6 inch laptops (positioned at the back)
- Smart suitcase-style layout with roomy sections and slip pockets
- Back pocket with zip closure and TSA lock for safe storage
- Compression straps on the sides to adjust the size
- Dedicated pocket for a water bottle
- Several zip pockets for organized storage
- Cabin bag approved (fits under the seat) Dimensions: 40 cm x 30 cm x 16 cm
- 22L - maximum use of space
- Color: Black and Beige
- Scandinavian Design
Which airlines let the Underseater fly free?
At 40 x 30 x 16 cm, the Underseater fits inside the free under-the-seat allowance (40 x 30 x 20 cm) of virtually every airline — so you pay nothing extra for cabin baggage:
- Ryanair – free 40 x 30 x 20 cm (increased since 2026): fits
- Transavia – free 40 x 30 x 20 cm, max 10 kg: fits
- Wizz Air – free 40 x 30 x 20 cm: fits
- easyJet – free 45 x 36 x 20 cm: fits easily
- Eurowings – free 40 x 30 x 25 cm: fits
- TUI fly, Corendon and Vueling – free 40 x 30 x 20 cm: fits
- KLM and Lufthansa – fits as included cabin baggage or carry-on
Check the current rules per airline in our cabin baggage guide and the 2026 comparison table. Airlines can change their rules — always check your own booking.
Frequently asked questions
Does the Underseater fly as free cabin baggage?
Yes. At 40 x 30 x 16 cm it fits inside the common free under-the-seat allowance of 40 x 30 x 20 cm at Ryanair, Wizz Air, Transavia, easyJet, Eurowings, TUI fly, Corendon and Vueling, among others.
Which laptop fits inside?
At the back there is a padded compartment for a laptop up to 15.6 inch, easy to take out separately at security.
Is the backpack waterproof?
Yes, it is made from fully waterproof material with waterproof zippers, so your laptop and clothes stay dry.
What is a TSA lock?
A lock that customs can open with a universal key without forcing it — your things stay safe, even if the bag has to go in the hold for once.
How much fits inside?
22 liters, with a suitcase-style layout, laptop compartment, bottle pocket, several zip pockets and compression straps to pull the bag compact.
Lundholm - Quality Design | Scandinavian Elegance
Lundholm is a byword for high quality and timeless design. Guided by the Scandinavian values of durability, simplicity and function, Lundholm creates products that are beautiful and made to last. The Underseater collection embodies that vision with a modern, practical touch – perfect for anyone who wants style, security and easy travel in one bag.
Lundholm Luxury Backpack Laptop Bag 15.6 inch with USB Port - Scandinavian Design - Deep Black
Meet the luxury backpack from the exclusive Lundholm collection. Sleek and versatile in deep black, it pairs Scandinavian design with serious functionality and a luxurious finish. Perfect for the modern man or woman on the move – for work, school, study or the daily commute. Thanks to its water-resistant materials and water-repellent zippers, your things stay dry and protected, even in light rain. With ergonomic straps for all-day comfort, a built-in USB port for charging on the go and a smart layout inside, this is the bag for an active life.
Benefits
This luxury backpack was designed with an eye for detail, durability and everyday ease. Made from high-quality nylon/polyester, it protects your gear from splashes and bad weather. The smart layout, with a padded 15.6 inch laptop compartment, several zip pockets and handy sections, keeps everything organized. The ergonomic, adjustable shoulder straps and the top handle make it comfortable to carry, while the trolley strap is perfect for travel. With a safety zipper for extra security, a USB station for charging your devices and a small zip pocket on the shoulder strap, this backpack earns its place in daily use, at work and at school.
Specifications
- Made from high-quality, water-resistant nylon/polyester (outer shell)
- Water-repellent zippers for the best protection
- Padded laptop compartment that fits 15.6 inch laptops (34.5 x 19.4 cm)
- Roomy main compartment with zipper and several sections
- Several zip pockets, including a safety zipper and a small zip pocket on the shoulder strap
- Ergonomic, adjustable shoulder straps for comfortable carrying - built for long days
- Built-in USB port for charging on the go
- Strap to attach the bag to a suitcase or trolley
- Top handle for carrying by hand
- Dimensions: 43 cm x 30 cm x 12 cm Capacity: 22 liters
- Color: Deep Black
Does this backpack work as hand luggage?
At 43 x 30 x 12 cm and with its handy trolley strap, this backpack is ideal as hand luggage in the overhead bin: it fits comfortably within the cabin sizes of KLM (55 x 35 x 25 cm), Lufthansa and Eurowings (55 x 40 x 23 cm) and Ryanair and Transavia (55 x 40 x 20 cm). For the tighter free under-seat spot (40 x 30 x 20 cm) it is just too tall at 43 cm — pick our Lundholm Underseater (40 x 30 x 16 cm) for that.
Not sure about the sizes on your flight? Have a look at the hand luggage comparison table per airline.
Frequently asked questions
Does this backpack fit as hand luggage on the plane?
Yes, as cabin luggage in the overhead bin: at 43 x 30 x 12 cm it stays within the common cabin sizes (55 x 40 x 23 cm and 55 x 35 x 25 cm). For the free under-seat spot (40 x 30 x 20 cm), the Lundholm Underseater is the better fit.
Which laptop fits inside?
A padded compartment that fits a 15.6 inch laptop (34.5 x 19.4 cm).
Does the bag have a USB port?
Yes, a built-in USB port to charge your phone on the go (power bank not included).
Can I attach it to my suitcase?
Yes, the trolley strap slides straight over the handle of your suitcase.
Lundholm - Quality Design | Scandinavian Elegance
Lundholm stands for high quality and timeless design. Built on our Scandinavian values of durability, simplicity and function, Lundholm creates products that are beautiful to look at and made to last. This Luxury collection carries that vision with a modern touch — perfect for anyone who wants style, comfort and everyday practicality in one bag.
Lundholm Underseater Waterproof Backpack - 15.6 inch Laptop Bag with TSA Lock
Meet the Underseater waterproof backpack from the exclusive collection by Scandinavian brand Lundholm. This sleek, versatile backpack in elegant beige or black pairs Scandinavian design with unmatched functionality. Perfect for the modern traveler or professional on the move – whether for work, study or a flight. Thanks to the waterproof zippers and high-quality materials, your things stay dry and safe, even in an unexpected downpour. With the built-in TSA lock and the smart suitcase-style layout inside, this is the ideal underseater for carry-on travel.
Benefits
This premium backpack was designed with an eye for detail and everyday ease. Made from durable, fully waterproof material, it gives your gear the best possible protection against moisture. The clever suitcase-inspired layout, with a padded 15.6 inch laptop compartment at the back, roomy sections and handy slip pockets, keeps everything organized and easy to find. The compression straps on both sides let you cinch the bag down for a compact fit. With a safety zipper for extra security, a dedicated pocket for your water bottle and several zip pockets, this backpack earns its place in daily use and on the road. And thanks to its carry-on friendly dimensions, it comes along on the plane without a fuss.
Specifications
- Made from high-quality, fully waterproof material
- Waterproof zippers for the best protection
- Padded laptop compartment that fits 15.6 inch laptops (positioned at the back)
- Smart suitcase-style layout with roomy sections and slip pockets
- Back pocket with zipper and TSA lock for secure storage
- Compression straps on both sides to adjust the size
- Dedicated pocket for a water bottle
- Several zip pockets for organized storage
- Carry-on friendly (fits under the seat) Dimensions: 40 cm x 30 cm x 16 cm
- 22L - Maximum use of space
- Color: Black and Beige
- Scandinavian Design
Which airlines let the Underseater fly free?
At 40 x 30 x 16 cm, the Underseater stays within the free under-seat size (40 x 30 x 20 cm) of almost every airline — so you pay nothing extra for hand luggage:
- Ryanair – free 40 x 30 x 20 cm (increased in 2026): fits
- Transavia – free 40 x 30 x 20 cm, max 10 kg: fits
- Wizz Air – free 40 x 30 x 20 cm: fits
- easyJet – free 45 x 36 x 20 cm: fits with room to spare
- Eurowings – free 40 x 30 x 25 cm: fits
- TUI fly, Corendon and Vueling – free 40 x 30 x 20 cm: fits
- KLM and Lufthansa – fits as included hand luggage or carry-on
Check the current rules per airline in our hand luggage guide and the 2026 comparison table. Airlines can change their rules — always check your own booking.
Frequently asked questions
Does the Underseater fit as free hand luggage on the plane?
Yes. At 40 x 30 x 16 cm it stays within the common free under-seat size of 40 x 30 x 20 cm at Ryanair, Wizz Air, Transavia, easyJet, Eurowings, TUI fly, Corendon and Vueling, among others.
Which laptop fits inside?
There is a padded compartment at the back for a laptop up to 15.6 inch, easy to take out separately at security.
Is the backpack waterproof?
Yes, it is made from fully waterproof material with waterproof zippers, so your laptop and clothes stay dry.
What is a TSA lock?
A lock that customs can open with a universal key without forcing it — your things stay safe, even if the bag has to travel as checked luggage for once.
How much fits inside?
22 liters, with a suitcase-style layout, laptop compartment, bottle pocket, several zip pockets and compression straps to pull the bag compact.
Lundholm - Quality Design | Scandinavian Elegance
Lundholm stands for high quality and timeless design. Built on the Scandinavian values of durability, simplicity and function, Lundholm creates products that are beautiful to look at and made to last. The Underseater collection carries that vision with a modern, practical touch — perfect for anyone who wants style, security and easy travel in one bag.
Lundholm Abisko Luxury Backpack - Laptop Bag Women 15.6 inch - Scandinavian Design
Meet the Lundholm Abisko luxury laptop backpack. This stylish, seriously roomy backpack in elegant cream brings together Scandinavian design, hard-working functionality and a beautiful finish. Perfect for the modern woman on the move – for work, study, travel or as cabin baggage. Thanks to the splash-proof materials and sturdy zippers, your things stay dry and protected. With wide, ergonomic straps for comfort (even on long days, without back strain) and a ventilated back panel for airflow, this is the ideal bag for an active lifestyle.
Benefits
This luxury backpack is designed with an eye for detail, durability and everyday ease. Made from high-quality nylon/polyester, it offers solid protection against splashes and daily wear. The smart layout – a padded 15.6 inch laptop compartment, several zip pockets and handy sections – keeps everything organized, including two bottle pockets, a phone pocket, two pen loops inside and a security zip pocket at the back for valuables. The anti-theft pocket on the back and the trolley strap make it perfect for travel, while the wide straps and airy back panel keep it comfortable without back strain. Two zip pockets on the front and a zip pocket inside add extra storage – ideal for work, school or as compact cabin baggage.
Specifications
- Made from high-quality, splash-proof nylon/polyester
- Sturdy zippers for solid protection
- Padded laptop compartment for 15.6 inch laptops (34.5 x 19.4 cm)
- Roomy main compartment with zip closure, an inside zip pocket and several sections
- Two zip pockets on the front for quick access
- Security zip pocket (anti-theft) on the back
- Phone pocket and two pen loops inside
- Two bottle pockets
- Wide, ergonomic and adjustable shoulder straps for comfortable carrying
- Ventilated back panel for airflow and comfort
- Trolley strap to attach it to a suitcase or trolley
- Dimensions: 46 cm x 28 cm x 15 cm (fully expanded for extra capacity) Capacity: 25 liters
- Color: Cream
- Weight: lightweight design for easy carrying
- Scandinavian Design
Lundholm - Quality Design | Scandinavian Elegance
Lundholm is a byword for high quality and timeless design. Guided by Scandinavian values of durability, simplicity and function, Lundholm creates products that are beautiful and made to last. The Abisko collection embodies that vision with a modern, unisex touch – perfect for anyone who wants style, comfort and practical ease in one bag.
Lundholm Abisko Water-Repellent Backpack for Women Beige - 15.6 inch Laptop Bag
Meet the Lundholm Abisko water-repellent backpack for women from our exclusive Abisko collection. This stylish, practical backpack in elegant beige brings together Scandinavian design and everyday ease. Perfect for the modern woman on the move – for work, study or a city break. Thanks to the water-repellent zippers and high-quality materials, your things stay dry and safe, even in an unexpected downpour.
Benefits
This luxury backpack for women is designed with an eye for detail and function. Made from durable, water-repellent material, it offers solid protection against moisture. The smart layout – a padded 15.6 inch laptop compartment, roomy sections and handy slip pockets – keeps everything organized. Whether you are heading to a meeting or catching a flight, the built-in trolley strap attaches the bag to your suitcase in seconds. The two bottle holders on the sides make this backpack extra practical for everyday use.
Specifications
- Made from high-quality, water-repellent material
- Water-repellent zippers for solid protection
- Padded laptop compartment for 15.6 inch laptops
- Roomy main compartment and large front pocket with slip pockets
- Back pocket with zip closure for safe storage
- Two bottle holders on the sides
- Built-in trolley strap for easy travel
- Dimensions: 40 cm x 30 cm x 11 cm (cabin bag approved)
- Color: Beige
- Capacity: 24 liters
- Lundholm - Quality Design | Scandinavian Elegance
Lundholm - Quality Design | Scandinavian Elegance
Lundholm is a byword for high quality and timeless design. Guided by Scandinavian values of durability, simplicity and function, Lundholm creates products that are beautiful and made to last. The Abisko collection embodies that vision with a modern, feminine touch – perfect for the woman who wants style and practical ease in one bag.
Made for giving
All our jewellery comes in luxury gift packaging
- Free shipping: jewellery from €75, bags from €100
- Order on weekdays before 3 pm, shipped the same day
- 14-day returns
Our backpack collection brings together function, carrying comfort and a calm, minimalist look that suits work, study and weekend trips. You will find a women's backpack in subtle, timeless colors, a sturdy men's backpack with smart compartments and a leather backpack that moves effortlessly from the office to off-duty. Think of a laptop backpack with a 13, 14 or 15.6 inch laptop compartment, padded shoulder straps, a trolley strap for your suitcase and separate zip pockets for mouse, charger and documents. For everyday use a small backpack is ideal in the city, while a roomy school backpack with a reinforced base and a water-repellent coating takes more on busy days. If you are searching for “women's backpack”, “men's backpack”, “laptop backpack 15.6 inch”, “leather backpack” or “waterproof backpack”, you will quickly find the right combination of size, material and features.
We design from the moment you actually need the backpack: the morning rush on your bike, a train journey with laptop and notebook, or a weekend away with hand luggage only. A laptop backpack with a padded compartment and a shock-absorbing base protects your device, while a separate pocket for a tablet or e-reader keeps the inside organized. Side pockets for a water bottle and an umbrella prevent spills in the main compartment, and a hidden zip at the back gives you a safe place for your passport and phone. If you want to travel light, a compact rolltop backpack is handy, because you can expand the volume when you take more with you. If you fly often, check the dimensions of your cabin-size backpack — that way you know for sure it can come along as hand luggage.
Material gives character and decides how much care is needed. A leather backpack takes on a soft sheen over time and shapes itself to the way you use it; ideal if you are looking for a business backpack with a premium look. For a busy commute, a water-repellent backpack in coated fabric or nylon is practical: light in weight, easy to clean and able to handle a short shower. Reinforced stitching at stress points, YKK zippers and a padded back panel make for durability and carrying comfort. Looking for a sustainable choice? Then look at models with recycled linings or PFC-free coatings; you get the same clean look with a smaller footprint.
Size and fit make the difference in everyday comfort. A 14 inch laptop backpack is compact and easy to move in, ideal if you mainly carry an ultrabook and the basics. Do you use a 15.6 inch laptop and want to fit a lunchbox and headphones as well? Then go for 18–22 liters with good internal organization. For study or the gym, 22–28 liters works nicely, certainly if you like a separate shoe compartment or compression straps. Measure your laptop diagonally and check the product dimensions; that way you know your bag closes without straining the zipper. If you often walk long stretches, look for S-curved shoulder straps, a chest strap and a breathable back panel: that carries noticeably lighter.
Because a backpack also makes a strong gift, we deliver our bags neatly packed and ready to give; pair one with a matching case or wallet if you like, for a set that lasts for years. Order before 15:00 CET on a working day and we ship the same day. You get free shipping from €100, handy if you add a laptop sleeve or a key strap at the same time. Torn between two sizes? Compare the liters and the laptop compartment; a slightly roomier backpack prevents overstuffing and keeps the back panel nice and flat.
Care is simple: keep a leather backpack looking good with a colorless leather cream (apply sparingly, test on an inconspicuous spot first), and wipe fabric or nylon models clean with a slightly damp cloth and mild soap. Let the bag air-dry and avoid direct heat sources. Store your backpack with the straps tucked in loosely and without heavy filling, so it keeps its shape. Whether you are searching for a women's backpack, a men's backpack, a laptop backpack 15.6 inch, a leather backpack or a waterproof backpack, here you will find considered models that combine aesthetics and ease of use: clean lines, smart compartments, strong materials and a fit you are happy with every day.
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