The versatile Large Backpack expands big when you need it to, and stays slim and sharp in everyday life.
The Large Backpack is a comfortable companion that'll follow you for life. Carry your life with ease and focus on your aspirations, living life to the fullest.
The Large Backpack is a great choice whether you're looking to leisurely explore or observe urban spaces, roam your playground, or go on weekend getaways. This backpack not only looks great but will last for life – joining your journey over the decades ahead.
Handcrafted in Finland from high-quality vegetable-tanned leather, this is an item for those who appreciate lasting items, timeless design, quality craftsmanship, and versatility.
Its slim design and sturdy back structure make it an excellent choice for use in the city. Yet the ability to overpack allows it to carry your essentials for a trip to the cabin or beyond. You will most likely live out of this pack for the foreseeable future.
Why this pack?
Design
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Made for urban life with a slim profile.
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Outstanding comfort as the leather conforms to your body over time.
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Timeless design that builds character over time as the leathers patinates.
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Handcrafted in Finland with a passion for quality by our friends.
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Engineered for repairability with strong materials that make repairs possible.
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Built to last to leave something for the next generations.
Features
- One protected outer pocket for smaller items
- 50mm wide and comfortable shoulder straps
- Carrying Handle for easy carrying in trains, planes, and buses
- Optional Detachable laptop sleeve for up to 16" laptops or documents
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Accessory loop for clip-on rear bicycle light
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Adjustable capacity with three G-buckle attachment points.
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Attachment points for utility straps integrated into the G-buckle attachment point loops.
Details
Materials and origins
- Cutting and sowing: Handcrafted in Finland
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Leather: Sturdy SOHRE tannery’s European vegetable-tanned bovine saddle leather
- Laptop sleeve: Recycled PET felt – made in Finland
- G-buckles: Marine-grade stainless AISI 316 steel – laser cut in Finland
- Roller buckles: Chromed steel – Sweden
- Yarn: Waxed polyester yarn – Italy
- Rivets: Copper-plated steel – Italy
Inside dimensions
Main compartment: Width 30cm, Height 35–48 cm, Depth 13cm
Felt Sleeve: Width 29cm, Height 33cm, Depth 3cm
Volume
14-19 liters
Configurator
Configure your Rucksack
One bag, multiple uses. Choose the backpack either with or without the internal sleeve for seamless work use. As a new addition we are also offering the following combo:
Traveller
When you need to travel light but still carry your essentials, the Traveller Set is the ultimate combo. Pair your backpack with the A4 Field Satchel for a seamless travel experience.
The A4 Field Satchel keeps your work or creative tools—like your laptop, notebook, and chargers—within reach, while your backpack is fully reserved for personal gear. Whether you’re heading out by land, rail, or air, this set is built for agility. We’ve traveled this way many times, and its convenience has earned it a permanent place in our setup.
Care and repairs
How should I care for my leather backpack?
You can start using your backpack straight out of the box. Leather works well even in bad weather conditions, and getting wet is fine as long as it is properly cared for. Of course the harder use, the faster patina, but that only ads character to the pack.
Treat with wax every 4-6 months or when the leather feels like it's drying, treat lightly with wax. Wipe the leather to clean it. With a cloth spread a thin layer of wax on the leather. Allow the wax to permeate overnight and then polish the remainders off with a cotton or wool cloth. The scent of tar will fade away in a couple of days, if a lot of wax is applied, this will take longer.
We recommend using natural products like bees wax based products or natural oils. Synthetic leather protection can block the pores of the leather. This will reduce the leather's ability to absorb wax and oils - ultimately reducing the lifespan of the backpack.
How long is the break-in period of the leather backpack?
We believe that leather is the best material for backpacks because it conforms to our bodies over time and can last for decades while remaining in good condition.
Like all high-quality leather goods, Kasperi backpacks also have a break-in period. It will take a couple of weeks of active use for the shoulder straps to start forming to your body. If you experience any pressure points, squeeze the straps lightly with your hands from the pressure points to help it form faster.
Closing and opening the G-buckles is also stiff at first but as the leather loops softens and form over time it will become fluid.
With proper care and use, these packs develop a unique patina and become more personal by the day.
What about repairs?
We believe in the “right to repair”. Every aspect from structures to material thicknesses are considered for repairability. Because our bags are designed to last for decades, it is inevitable that they will require servicing at some point. The hardest-wearing parts like the shoulder straps are made from 3mm leather so that they will last for decades of use.
The hardest-wearing parts (i.e. shoulder straps) are made from 3mm leather for longevity and the whole structure is designed with serviceability in mind.
