Skip to content


0 Trees planted

Learn more

Plastic Fischer

0 kg River Plastic collected

Learn more

Hajo Medium Pannier Backpack


Let’s put sweaty backs to history while introducing one of the slickest and most minimal pannier editions to the market. The mounting works with a hook & loop system, which can be attached in no time through a durable metal buckle. While you wear the backpack on your back it is hardly visible, because it is placed in the upper part of the shoulder straps. Just the perfect companion for commuting around the city. This pannier edition of the Hajo Backpack also features a g-buckle and zipper closure, so adapt the volume however needed. A quick access on the rear allows you to enter the main compartment through a vertical zipper.

The Lotus Infinity Series is crafted from 'PUrTEX∞' - a custom ultra-durable tech material that Ucon Acrobatics developed over several years. It is made from recycled textile waste and finished with a rigid coating of solvent-free polyurethane (PU).

Hajo Medium Pannier Backpack
Lotus Infinity Series
Dark Rose
  • Ready to ship
  • Free EU delivery over 99€
  • Climate neutral shipping
€139,99 Including VAT
Plant a Tree
Plastic Fischer
Secure Shopping
Money Back
Free Delivery
Product Size 50 x 30 x 12 cm
Product Capacity 16 l
Product Weight 1025 g
Product Material Polyurethane (PU) with polyester from recycled textiles (rPET), solvent-free
  • 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
  • Almost invisible pannier system perfectly combines functionality with elegance
  • Seamlessly transitions between a pannier and a backpack for different travel needs
  • Exceptionally light
  • Can be fitted in no time
  • A hook & loop system facilitates quick attachment to almost any bicycle rack
  • Another hook at the bottom gives additional fixation
  • Roll-top for scaling the volume can be easily and quickly closed with an aluminum G-buckle
  • Main opening closes additionally with zipper
  • Quick access to the main compartment through a 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
Unique in its performance when it comes to functionality, durability and aesthetic beauty. The 'PUrTEX∞' is a progressive material – resource-saving, easy-care and water-resistant. A new leather alternative made from recycled textiles, finished with a coating of extremely abrasion-resistant and solvent-free polyurethane.


  • Made in China by factories that are regularly audited by amfori BSCI
  • Bluesign® system-partnership means we avoid harmful chemicals during production


'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%.


  • 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 the DNA of our company. 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 design and in the best case, also extends the period of us.

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:

  1. Reduced environmental impact
  2. Longevity
  3. Recyclability

Mono-Material Products

A mono-material is only composed of a single type of material so they are typically easier to recycle than products made from different things. Also, the higher the material purity, the less energy is needed for chemical recycling. Our goal is to create products from 100% recycled mono-materials from our own industry - in our case PET from fashion 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 where used textile fibers are transformed into new fibers for creating new textile products, reducing waste and maximizing material reuse. The method we use is called chemical recycling based on glycolysis.

Fiber-to-Filler Recycling

Mixed textiles are hard to recycle and often end up in landfills or get burned. We have found a way to put them to good use. They are incorporated as filling materials in non-visible parts of our bags and backpacks.

Dope Dye

Dope dyeing is a process that adds color to fibers before they are spun into yarn. The savings 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%. UV stability is also significantly better, as is color fastness to rubbing.

  • Dimensions rolled out: 60 x 30 x 12 cm
  • Dimensions rolled in: 50 x 30 x 12 cm
  • Capacity rolled out: 20 l
  • Capacity rolled in: 16 l
  • Laptop compartment: 28 x 42 cm
  • Weight: 1025 g

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
Certified B Corp Peta Approved Bluesign® System Partner Ecologi Plastic Fischer

Hajo Medium Pannier Backpack

€139,99 Including VAT
Learn More
Any questions left?
Click on a button or just scroll down!


Redefine your ride, reshape your impact

Ucon Acrobatics
Hajo Medium Pannier Backpack

Laptop Compartment
High-quality interior compartment with built-in shock absorber fits a 16,4" laptop or tablet.
Boarding Completed
All products comply with international hand luggage regulations and can be taken into the cabin of any airline.
Minimalist design from Berlin
Our products are designed in Berlin and stand for minimalism, creativity and sustainability.

Lotus Infinity

Ucon Acrobatics
Lotus Infinity

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


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


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.

A Change in Material –
A Change for the Climate

Instead of PET bottles from the beverage industry, we now recycle textile waste. A circular economy means that each industry is responsible for its own waste. We aim to use textile waste to the maximum extent possible. In doing so, we want to design them in such a way as to create durable products with low emissions.

Here are the key innovations


Largest possible percentage of recycled textiles


Extended lifetime


Reduced ecological footprint


Designed for the circular economy

How would such a ‘innovation’ look like?

Sustainability doesn't always have to look 'eco'. In our case, you can hardly tell the difference. Often they are not visible, because we look where no one looks. Hard plastics and foams are hidden in every backpack sold today. We have found a way to avoid all of that and use textile waste instead.

See how it works - step by step:






Lotus Infinity Material ‘PUrTEX∞’

None of the materials available on the market completely convinced us. Over a period of several years, we developed our own material, which is second to none. Together with the experts of one of the world's largest manufacturers, we have succeeded in developing a new material with outstanding properties.

The laboratory comparison with commercially available artificial leathers is quite convincing:

Tensile strength

+ 50%
+ 100%
+ 400%
+ 1.000%

Tear resistance

Adhesion resistance

Abrasion resistance

Conventional PU material
‘Lotus Infinity’ Material ‘PUrTEX∞’
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 because nothing should suffer – not humans, not animals and not the environment.


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.

1 Product


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.

1 Product