Everything went smoothly.
Very happy with the shoes! Good on the foot and normal in size.
Very good! Very satisfied 😀
Fantastic shoes!
Everything went smoothly.
Very happy with the shoes! Good on the foot and normal in size.
Very good! Very satisfied 😀
Fantastic shoes!
If anyone knows winter, it’s Tiril. From competing in it to living in it — she knows what it takes. Now she’s put that knowledge into a boot: Kollen.
Sustainability is complex. Just like 30% less sugar isn’t sugar-free, we don’t just claim to be sustainable. We take action!
Our approach involves bold experiments in materials, design, and business models across three phases. Viable ideas become pilot products, and successful pilots set new standards and innovations.
Sustainability in Kastel shoes thrives on aligned, ongoing efforts.
The tests that became products, key processes, and new materials. This is where innovation and sustainability come together to create real change.
One shoe. More ways to wear it. With modular features like Kollen’s removable shaft, our shoes adapt to your needs. Add warmth when you need it. Remove it when you don’t. It’s our way of reducing waste and extending wear.
Smarter sizing. Less waste. Instead of making half sizes, we created a size insert that adjusts the fit. It reduces overproduction, returns, and complexity.
Inspired by fishermen. Built to last. Waterproof membranes work—until they don’t. One small tear can ruin them. That’s why we use tough PU, like the raincoats fishermen wear. The result: shoes that last longer and handle real weather.
