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About us

Hi, I am Leo
and I founded QT Shirts in late 2025. Let me tell you a little about my idea behind this shop.

I founded QT Shirts because I wanted to put my designs and ideas on shirts.
My top priority is to offer clothing that is manufactured under fair and humane conditions. I don't want to profit from people suffering under poor working conditions, no matter where in the world they are.
Although many suppliers advertise with terms such as “fair” or “sustainable,” it is difficult to trace the actual manufacturing conditions for many products. Shirts are often overloaded with certificates that are difficult to verify.
In addition, products that focus on price often travel long distances — at the expense of people and the environment.
That's why I place great importance on transparency, fairness, and genuine sustainability when selecting partner companies — and not just meaningless seals.

Let's be clear: our prices for T-shirts are not a bargain.
But with us, you're not getting a mass-produced product — you're getting a shirt made from sustainable organic cotton, sewn and printed in France under fair conditions.
No fast fashion.
No greenwashing.
Instead, honest, sustainable clothing with a stance — wearable with a clear conscience.

About us

Hi, I am Leo

and I founded QT Shirts in late 2025. Let me tell you a little about my idea behind this shop.

I founded QT Shirts because I wanted to put my designs and ideas on shirts.
My top priority is to offer clothing that is manufactured under fair and humane conditions. I don't want to profit from people suffering under poor working conditions, no matter where in the world they are.
Although many suppliers advertise with terms such as “fair” or “sustainable,” it is difficult to trace the actual manufacturing conditions for many products. Shirts are often overloaded with certificates that are difficult to verify.
In addition, products that focus on price often travel long distances — at the expense of people and the environment.
That's why I place great importance on transparency, fairness, and genuine sustainability when selecting partner companies — and not just meaningless seals.

Let's be clear: our prices for T-shirts are not a bargain.
But with us, you're not getting a mass-produced product — you're getting a shirt made from sustainable organic cotton, sewn and printed in France under fair conditions.
No fast fashion.
No greenwashing.
Instead, honest, sustainable clothing with a stance — wearable with a clear conscience.


The Material

Our shirts are made from 100% organic cotton – for a responsible treatment of the environment.
This means: no artificial fertilizers, no pesticides, no defoliants.
In addition, growing organic cotton can save up to 91% water compared to conventional cotton.
This protects the environment and conserves important resources at the same time.


The Manufacturing Process

Our most important criterion: our T-shirts are produced entirely in France – woven, sewn, and printed.
By manufacturing within the EU, we can guarantee fair working conditions and ensure humane production.
At the same time, unnecessary transport routes are eliminated, which improves the ecological impact of the shirts.


Your Shirt

Each order is made individually for you.
Therefore, it can take up to 4 working days for your shirt to be delivered to the mail services. After being handed over to the mail services, the time until it reaches you depends on the destination of your shirt.
As we focus on individual production, we ask you to refrain from returning items. This not only reduces our workload, but also conserves valuable resources in manufacturing and transportation.

To ensure that your shirt still fits, you can find all the information you need in our size charts below.


Size Charts

So you can be sure your shirt will fit once it reaches you, please find the size charts below.

Womens Shirt sizes
Size in cmXSSMLXL
Width4346495255
Height6062646668

Mens Shirt sizes
Size in cmSMLXL2XL
Width5053565962
Height7072747678
Size Charts

So you can be sure your shirt will fit once it reaches you, please find the size charts below.

Womens Shirt sizes
Size in cmXSSMLXL
Width4346495255
Height6062646668

Mens Shirt sizes
Size in cmSMLXL2XL
Width5053565962
Height7072747678

The Packaging

We also focus on sustainability when it comes to shipping.
All orders are packaged completely plastic-free in recyclable and recycled envelopes and boxes.
Paper-based tape is used instead of conventional plastic tape.


The Shipping

For detailled shipping cost for the respective countries please see:
Shipping Cost Details | Versandkosten
Shipping from the production facility in France is 100% CO₂-neutral (at least in France).
Unfortunately, we have no control over emissions once the goods have been handed over to (inter-)national delivery services.


After the delivery

Since we generate waste through shipping – even if it is completely plastic-free – we are, of course, part of the legally required dual disposal cycle.



Our Values:

Fair | Responsible | Sustainable


And now...

Discover our collections

Womens QT Shirts

Women Collection
Mens QT Shirts

Mens Collection


Motif Collections
Chimp

Chimp
Koala

Koala
Penguin

Penguin

Dino

Dino
Trash Panda

Trash Panda
Quokka

Quokka

Sloth

Sloth
Skunk

Skunk
Red Panda

Red Panda

QT Shirts Logo

QT Shirts Logo