Photographer: Lumi Heikkilä
Tetzu 
Tetzu is an independent accessories brand founded and designed by me, built around expressive colour, playful forms and thoughtful material choices.
I created Tetzu to bring a sense of imagination and individuality into everyday accessories, combining contemporary product design with references to nostalgia, craftsmanship and the freedom to express yourself.
As the founder, I oversee nearly every aspect of the brand, from concept and product design to material development, manufacturing, packaging and digital platforms. I also plan and style the brand’s photography and visual content, working closely with photographers to bring each shoot and campaign to life.


Founded & designed by: Katariina Rainio
Based in: Finland
Focus: Accessories / Product Design / Materials
Photographer: Lumi Heikkilä
Amal collection for Tetzu
The Amal collection explores the relationship between colour, pattern and material.
Inspired by the colors and timeless charm of the Amalfi Coast in spring, I wanted to create a collection that feels expressive, nostalgic and full of life.
Surface pattern design
From sketch to surface
I wanted to bring the colours of the Amalfi Coast to life through bold colour combinations. I chose a simple diamond pattern to let the colours take centre stage.


Final products from the Amal collection.
All images above by Lumi Heikkilä.
Production
I managed the collection through production together with the manufacturing partner, taking the project from material development and prototypes to the finished products.
Tetzu — Beyond the product
Beyond product design, I have built and shaped the complete Tetzu World — developing its visual identity, illustrations, packaging, digital presence and the worlds surrounding each collection. I lead the creative direction and styling of campaigns and photography, working closely with photographers to bring the brand to life.
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