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Product Description
Breathable, Washable, Made to Last.
Stavern Merino is our go-to slip-on—now upgraded with a 3D-knitted summer wool upper. Lightweight, breathable, and naturally temperature-regulating, this material keeps your feet cool and comfortable all day. It’s still machine washable, quick-drying, and easy to wear—built on our EVA-filled cup sole for lasting support. Designed for Scandinavian summer days, Stavern Merino gives you the feel of barefoot comfort, with a lighter footprint.
USP Explainer Section


How to Wash Your Kastel Shoes in 3D Merino Wool
Yes — you can wash your Kastel shoes. That’s one of the many perks of our 3D-knitted merino wool styles. Whether it’s Kampen, Sagene, or Stavern, here’s how to keep them looking fresh and feeling good:Step-by-Step:
1. Remove insoles – and the color patches if you’re washing Kampen.
2. Pre-treat stains with Påstell lemon soap.
3. Rinse off the soap with water.
4. Machine wash on a gentle wool program, max 30°C.
5. Air dry – never use a dryer. Reshape the shoes and let them dry naturally.

Innovations
Nature Lab is our initiative to research, test and develop shoes in a more sustainable way. This shoe uses the following innovations:
#1 – Component Reduction
These shoes are designed to reduce waste by using fewer components. As a case study, we cut one model from 31 to 11 parts, proving that smarter design eliminates excess without sacrificing performance. Since then, this has become standard in our development process. Every shoe released since Stavern 2019 has undergone significant component reduction, making our footwear more efficient and less wasteful.
Learn more#2 – 3D-Knitted Merino Wool
These shoes are made with 3D-knitted Merino wool, a natural and sustainable material that keeps feet cool. Wool is breathable, moisture-wicking, and odor-resistant without synthetic treatments. The 3D-knit structure reduces waste while allowing air to flow. And when it needs a refresh? Just toss it in the wash. A cooler, lighter, and more sustainable choice for spring and summer.
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