Main Design

Inspiration to Design – Where it all begins

— Tiina Kosonen

For me, Tiina, founder of MAIN Design, swimwear is much more than fabric and seams. It's about creating timeless pieces in which women feel beautiful and comfortable – whether surfing, at the spa, or playing with their children in the sand.

Main Design

Autumn Escapes – Your Swimwear, Your Moment

— Tiina Kosonen

Autumn? No problem – we're bringing back summer! 30% OFF all swimsuits.

Main Design

Sunny days, strong women & a special giveaway

— Tiina Kosonen

Autumn feels even more beautiful when we can share it. That's why we've teamed up with nika to create a special giveaway for you.

Main Design

Deadstock Guide 2026: Sustainable Fashion and Tips

— MAIN Design
Discover everything about sustainable fashion, the causes and consequences of deadstock, as well as practical tips and trends for conscious consumption in the Deadstock Guide 2026.
Main Design

Swimwear Switzerland: Sustainable - stylish - unbeatable price

— Yvonne Böni
Tagged: Bademode

We are proud to offer you the Offering the best without the need for luxury prices. At MAIN Design, you don't pay for a logo—you pay for honest quality, sustainable values, and swimwear that will last a lifetime. Because our swimwear is more than just a piece of clothing—it's a statement of quality, fairness, and style.

Main Design

Summer must-have: The most beautiful beach towels at MAIN Design

— Yvonne Böni

With us you will find a wonderful selection of High-quality Turkish beach towels that not only look beautiful but also impress with their quality, functionality, and sustainability. Discover them now!

Main Design

main.swim in Switzerland: Our very first shoot on the Aare

— Tiina Kosonen

We wanted to capture real moments—not models with six-packs and studio lights. Instead, we wanted to capture sun on the skin, water between the toes, and that feeling of "here and now."

Main Design

Summer favorites for kids — our new boho sets are here!

— Yvonne Böni

They're finally here — the light and airy summer two-pieces for girls and boys!

Whether for your holiday suitcase, garden parties, or simply a day full of adventures: the new Boho sets bring style, comfort, and summer vibes directly into the everyday life of your little free spirits.

Main Design

Why we started designing surf bikinis – and why it matters

— Tiina Kosonen

You know that feeling? You're paddling out, focused, ready for the next wave – and suddenly you're tugging at your bikini because it's slipped.
At that very moment we knew: things couldn't go on like this.

Main Design

Mini looks, maxi style: Why our two-piece sets for boys and girls are everywhere this summer

— Tiina Kosonen
Summer is calling – and our new resort two-pieces for kids are ready to go! Whether it's a garden party , a day at the beach , or simply a...
Main Design

We were the first: 7 years of sustainable children's swimwear made from recycled materials

— Yvonne Böni

Seven years ago, we at MAIN Design turned a heartfelt idea into reality: to be the first Swiss brand to design children's swimwear from recycled materials. What was a bold step back then is now an integral part of our philosophy.

Main Design

Dry bag instead of a wrap-around fish? The stylish, waterproof bag for Rhine, lake & summer adventures

— Tiina Kosonen

Our waterproof roll-top bags keep your belongings dry (or wet) – depending on the mission.