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An urban classic with an iconic roll-top silhouette. Designed in Berlin, it has long been part of the cityscape of modern cities. With its clean form and smart features, the Hajo backpack is an essential companion for your everyday life. The timeless look is perfect for anyone who values minimalist aesthetics and everyday practicality.
The vivid colors and eye-catching look make the series feel like a true fashion statement. A blend of PU and polyester enables water-resistant properties. It boasts a soft outer surface and exceptional hand feel, same for the inside because of its brushed polyester lining.
- Ready to ship
- Free EU delivery over 99€
- Climate neutral shipping



Petrol
Other Hajo Medium Backpack
- Custom-developed tech material by Ucon Acrobatics
- Over 100x more scratch resistance than conventional artificial leather
- Made from recycled fashion waste
- Developed with the circular economy in mind
- Roll-top for scaling the volume can be easily and quickly closed with hook and loop fastener
- Main opening closes additionally with zipper
- Quick access to the main compartment through vertical zipper
- Two external pockets on the sides e.g. for umbrella or bottle
- An external pocket on the front closes with water-repellent zipper e.g. for cell phone or wallet
- High-quality interior compartment with built-in shock absorber fits a 16,4" laptop or tablet
- Two mesh pockets e.g. for cell phone, wallet or cable
- Elastic bottle holder and keychain inside
- Reinforced back with padding
- Adjustable and padded shoulder straps guarantee comfortable fit of the backpack
- Padded bottom part for more safety and stability
- Protruding 'Ucon Acrobatics' print
- Dimensions rolled out: 60 x 30 x 12 cm (H x W x D)
- Dimensions rolled in: 50 x 30 x 12 cm (H x W x D)
- Capacity rolled out: 20 l
- Capacity rolled in: 16 l
- Laptop compartment: 28 x 42 cm
- Weight: 1025 g
'PUrTEX∞' is a custom ultra-durable tech material. Ucon Acrobatics has developed this progressive material over several years - which is second to none. Increased longevity - reduced thickness. Lower ecological footprint and steps into circularity. It is made from recycled textile waste and finished with a rigid coating of solvent-free polyurethane (PU). The PU foam layer has a cross-link structure, so the functional aspects are similar to molded rubber. The high performance has been proven in test results. The surface adhesion strength is four times better and the scratch resistance even improved over 100 times compared to conventional artificial leather. Furthermore, PU making is free of solvents such as DMF and VOC. The CO2e is reduced by over - 50%, the energy is reduced by over -40% and comes mainly from renewable sources. For the base of the material, post-consumer textile waste is transformed into recycled PET yarn in a chemical recycling process. The resource-saving spin dyeing process ("dope dye") is applied even before the interlock fabric is knitted. The savings of this are huge - water consumption is reduced by up to -90%, chemical consumption by up to -80%, energy consumption and CO2e emissions by up to -50%.
Components
- Main Shell Material: 51% Polyurethane (PU), 49% Polyester (rPET) fiber-to-fiber recycled from post-consumer textile waste, dope-dyed
- Secondary Shell Material: 54% Polyester (rPET) fiber-to-fiber recycled from pre-consumer/ post-consumer textile waste, dope-dyed, 46% thermoplastic Polyethylene (TPE)
- Inner Material: 100% Polyester (rPET) fiber-to-fiber recycled from pre-consumer/ post-consumer textile waste, dope-dyed
- Cushion Material: 100% Polyester (rPET) fiber-to-filler recycled from pre-consumer textile waste
- Webbing Band: 100% Polyester (rPET) fiber-to-fiber recycled from pre-consumer/ post-consumer textile waste, dope-dyed
- Metal Hardware: 100% Iron (FE), painted
Sustainability is deeply rooted in our company’s DNA. As a value-driven company, we share common convictions and want to lead the circular economy in our field.
Design Principles
Our design developments focus on durability, as bags and backpacks are meant to be used daily and intensively for years. Minimalist design is also timeless and, in the best case, extends the usage period.
We consider the impact of production with every new product and the entire life cycle. We thoroughly research materials, processes and emerging technologies to understand and reduce the environmental footprint of each product. In the shift from a linear to a circular economy, all components must undergo a review based on the following criteria:
- Reduced environmental impact
- Longevity
- Recyclability
Mono-Material Products
A mono-material is only composed of a single type of material, so it is typically easier to recycle than products made from different things. Also, the higher the material purity, the less energy is needed for depolymerization (chemical recycling). Our goal is to create products from 100% recycled mono-materials from our own industry - in our case PET from textile waste. The following two recycling methods are essential to make products from old textiles.
Fiber-to-Fiber Recycling
This method is a closed-loop process in which used textile fibers are transformed into new fibers to create new textile products, reduce waste, and maximize material reuse. The following two recycling processes are particularly important for manufacturing our products from used textiles.
1. Mechanical Recycling
We use this textile recycling process for industrial textile waste (Pre-consumer). These leftovers from fabric production are mechanically recycled with little energy input. The resulting fibers are shortened, which is why we use them to produce different types of felt. This can be used in soft form as an inner lining or stiff form instead of hard plastic for reinforcement.
2. Depolymerization
We use this textile recycling process for end consumers’ textile waste (Post-consumer). This is mainly workwear, which also contains a high proportion of polyester. These synthetic fibers are broken down into their original chemical building blocks and used to make new synthetic fibers. Often called chemical recycling, our process is based on saccharification, fermentation and alcoholysis. This process requires more energy and chemicals as mechanical recycling but produces higher-quality recycled fibers for new textiles.
Fiber-to-Filler Recycling
This method is an open-loop process that uses textile waste from the fashion industry with a high polyester content already dyed. These are mainly scraps from sewing factories, downcycled into thick felt elements with little effort and used in invisible areas of the backpack. Such mixed textiles are hard to recycle and often end up in landfills or get burned.
Dope Dye
Dope dyeing is a process that adds color to fibers before they are spun into yarn. The savings are enormous - water consumption is reduced by up to -90%, chemical consumption by up to -80%, energy consumption and CO2e emissions by up to -50%. UV stability is also significantly better, as is color fastness to rubbing.
- Made in China by factories that are regularly audited by amfori BSCI
- Bluesign® system-partnership means we avoid harmful chemicals during production
Enjoy free shipping on all orders over 99€ within the EU. Incoming orders are processed within 24 hours on weekdays and will be dispatched immediately. Our standard shipping within the EU takes a total of 2 to 6 working days, outside the EU shipping takes 8 to 12 working days. When things need to go fast, we also offer an Express option. We ship our parcels with the tariffs 'DHL GoGreen Plus' and 'UPS carbon neutral'. The delivery companies promise to invest in new e-delivery vehicles and compensate the remaining emissions through climate protection projects...
We currently accept payments by Credit Card (Visa, Master Card and Amex), PayPal or Apple Pay.
Sustainable Partners
Awards
Hajo

Our Top-Seller.
Ucon Acrobatics
Hajo Medium Backpack




All products comply with international hand luggage regulations and can be taken into the cabin of any airline.
Our products are designed in Berlin and stand for minimalism, creativity and sustainability.
Lotus Series

Ucon Acrobatics
Hajo Medium Backpack


All our outer fabrics are waterproof - however, we classify this product as 'water resistant'. Due to the construction, water can penetrate through the seams in case of heavy and persistent rain. Therefore, we recommend an additional rain cover during such weather.

MINIMAL DESIGN
Our durable, timeless designs for urban nomads are the result of environmentally friendly and social decisions as well as passion and creativity.

MINIMAL EMISSION
We want to create the best product possible without causing any unnecessary damage. For this plan to work and for us to be able to inspire and implement environmental solutions, we work with carefully selected associations and partners.
B-Corp use business as a force for good and prioritize people and the planet alongside profit. We have met rigorous standards for social and environmental performance, accountability and transparency.
This certification system covers the entire production chain from raw materials to finished products and ensures that chemicals, water, and energy are used responsibly.
Animals are not expendable and must not suffer for our products. We only produce beast-free products and have been recognized as "Best Vegan Backpack" by PETA Vegan Award Fashion 2024.

Ecologi
Together with our gold standard partner Ecologi we planted 25.000 trees in 2022 mainly through the 'Eden Reforestation Project'. With each purchased product in our online shop our customers help to plant one more tree and let our forest grow.

Plastic
Fischer
Our partner Plastic Fischer is a social enterprise that develops cost-efficient technologies to collect plastic waste from rivers before it can enter the oceans. With each purchased product in our online shop our customers help Plastic Fischer to remove 1kg of river plastic from rivers in Indonesia.
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