Sustainability isn't a trend for us. It's our starting point. From the very first stitch of our sewing machines, it was clear: we wanted to design surf bikinis that not only look good – but also do good. 💚

A pile of clothing with several labels. The labels read "ECONYL," "Main Design," and the contact information "@MAIN_DESIGN" and "MAINDESIGN.CH." The labels have different colors and patterns and indicate sustainable or environmentally friendly products.
Made to last – made to love 🌊

♻️ Econyl® – old fishing nets become new freedom

Our bikinis and swimsuits are made from Econyl® – a recycled nylon derived from old fishing nets, carpet remnants, and industrial waste. The fabric is durable, stretchy, UV-resistant, and feels incredibly soft against the skin. No compromise between function, comfort, and environmental responsibility.


Sustainable materials, designed with purpose. 🌱

🌸 Less is more – Slow Production, Conscious Design

We produce in small batches to avoid overproduction. Each piece is carefully designed and crafted with love. Not a mass-produced item, but a cherished piece – designed to accompany you for many summers to come.

🧵 Fair cooperation & quality

We work with select partners in Europe and Bali who share our values: quality, fairness, and transparency. Short supply chains, fair working conditions, and responsibly sourced materials are a matter of course for us.

🌊 Sustainability is an attitude

For us, sustainability isn't about perfection – it's about awareness. It's the sum of small, conscious choices. And every choice counts. When you choose a MAIN Design surf bikini , you become part of a movement that says: Feel good, do good.

Shop sustainable surfwear →


Designed with love in Switzerland, produced responsibly in Bali – for women, waves & the future.

Tiina Kosonen