Delta Nuts - 40 (Second-hand)

The art of creating with what already exists.

At Zèta, we do not believe in continuously depleting the planet's resources to create something new. Our mission is simple: transform what others consider waste into durable, desirable design objects.

All our trainers are designed using upcycled materials. Whether grape marc, corn, coffee, or olives, we are constantly seeking innovative solutions to give a second life to dormant resources.

However, creating from what already exists does not mean compromising. We design our products to be as stylish and comfortable as they are environmentally friendly. Every pair tells a story — of a material that doesn’t end up in landfill, but beneath your feet, ready to travel new miles.

Crafting trainers from recycled materials is our way of proving that a different kind of fashion is possible: circular, transparent, and firmly focused on the future.

Zèta: Nothing is lost, everything is worn.

Your feet carry you, take good care of them.

At Zèta, comfort is not an afterthought, it is our starting point. Where many brands focus solely on style, we choose to combine aesthetics, ethics and well-being at every stage of development of our trainers.

Our models are designed to adapt naturally to your foot: supple, lightweight, and breathable, they make you feel like you are walking in slippers – and that is exactly what over 90% of our customers tell us in their reviews. So it is not just us saying it, it is you.

The secret? We use the Strobel construction, a premium manufacturing technique that gives the shoe exceptional flexibility. The result: natural cushioning, no feeling of stiffness, and incomparable freedom of movement, even after hours of walking.

No more blisters and heavy legs: our trainers go with you everywhere, in the city as in the woods, from the first to the last step of the day.

Trainers made to last, without compromising on comfort.

Our materials are carefully selected to ensure they are pleasant to wear and durable over time. Before being launched, all our prototypes are inspected by the CTCP (Footwear Technological Centre of Portugal) for flexibility and abrasion testing. Then, they are tested in real-world conditions by our team and Zèta club members.

Each pair is assembled by hand by our Portuguese artisans, then subjected to rigorous quality control to ensure that your comfort meets our high standards – and yours.

Manufacturing workshop - Vizela, Portugal

We are proud to collaborate with partners who share our values and are just as committed as we are, both environmentally and socially.

At the age of 20, Albano assembled his very first pair of shoes in the back of a garage. 

His first pairs of shoes were then sold in a few local shops and after Sunday mass. The shoes proved popular thanks to their quality and were quickly sold all across northern Portugal.

For over thirty years, nearly 150 artisans have been keeping Portuguese craftsmanship alive with meticulous attention to detail and finishes. They joined our journey in 2022, and over the months we have forged very strong relationships.

Certifications

	ISO 14001 | Environmental management systems
	ISO 9001 | Quality management
	SMETA | Sedex Members Ethical Trade Audit