surf bikinis
Discover sustainable surf bikinis at MAIN Design
Our surf bikinis combine style, comfort and functionality, perfect for anyone who loves the sea. Made from recycled materials and handcrafted in Bali under fair working conditions, our bikinis offer the ideal combination of support and flexibility for every wave.
Why choose our surf bikinis?
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Sustainable materials : Our bikinis are made from eco-friendly fabrics that are both durable and comfortable to wear.
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Perfect hold : Our surf bikinis are designed to stay in place even in the wildest waves so you can concentrate fully on your surfing experience.
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Stylish designs : With our "Mix & Match" feature you can create your own individual look and find the perfect bikini for your style and comfort.
sustainability in focus
MAIN Design is committed to protecting the oceans and supports this by donating 1% of all online sales to Healthy Seas. Enjoy a unique shopping experience with our commitment to quality and sustainability.
Shop now and discover sustainable surf bikinis! Benefit from free shipping in Switzerland for orders over CHF 120 and find the perfect surf bikini that reflects your style and values.
Let customers speak for us
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Ethically handmade
All of our products are handmade with love in Bali under fair working conditions.

Sustainable
Our products are made from recycled and/or sustainable materials.

This is us
We are Tiina and Yvi, two mothers and passionate surfers who founded MAIN Design. Our small Swiss fashion company was born out of the need to find functional and stylish surf bikinis that we were missing. So we started to develop our own designs. MAIN Design stands for sustainable surf and swimwear, especially for the environmentally conscious surfer and mother. Each product is developed with love and care from idea to completion to offer you feel-good swimwear and accessories that make you happy. Our commitment to the environment doesn't stop with our products. With every online sale we donate 1% to Healthy Seas to protect our oceans. Together we create a better future – for ourselves and our children.
Better for the environment
All of our surf bikinis and swimwear are made from sustainable fabrics made from recycled materials. Our goal is to be as sustainable as possible in all areas - from design to production, sales and collaboration with non-profit organizations.
Do you also want to do something good for the environment?
Frequently Asked Questions (FAQ)
What advantages do your surf bikinis offer for adventurous women?
Our surf bikinis offer sophisticated lacing systems that ensure optimal hold and prevent unwanted glimpses or slipping necklines. They are also reef-friendly and made from sustainable materials.
How do I avoid unwanted muffin tops with your panties?
Our briefs are equipped with a sophisticated lacing system that ensures a perfect fit and avoids unwanted muffin tops. This allows you to move freely while surfing and swimming.
How do your tops offer more or less support?
Our tops have a sophisticated lacing system that can be individually adjusted. This allows you to adjust the fit to your needs - for more safety and comfort when surfing.
What benefits does your swimwear offer for surfing mothers?
Our swimwear for mothers offers special support and comfort, UPF 50+ protection and flexible size options. There are also matching outfits for moms and minis and designs that stylishly cover the belly.
What makes your swimwear better for the environment?
Our swimwear is made from sustainable materials such as recycled nylon and polyester. We attach great importance to environmentally friendly and durable fabrics. In addition, with every purchase we support Healthy Seas, an organization that works to protect the oceans.
Are your bikinis fairly produced?
Yes, we attach great importance to fair working conditions. Our products are manufactured in companies that guarantee fair wages and good working conditions.
How do I best care for my surf bikini?
Rinse your surf bikini with cold water after each use. Use mild soap and avoid drying in direct sunlight or in the dryer to prolong the life of the material.
How do I find the perfect size and fit for my body type?
Thanks to our mix & match options, you can combine tops and bottoms in different sizes. This way, you are guaranteed to find the perfect fit that offers you maximum comfort. Our swimwear is designed to flatter different body types and offer optimal support.
Can I try on your swimwear at home and return it?
Of course! You can try on our swimwear in the comfort of your own home. Unworn and unwashed items can be returned in their original condition within 14 days. For more information, see our returns page.
How long does delivery take?
Shipping within Switzerland usually takes 1-3 working days. International orders may take a little longer. You will receive a confirmation email with a tracking number once your order has been shipped.
Do you support environmental projects?
Yes, with every online sale we donate 1% to Healthy Seas, an organization dedicated to protecting our oceans and eliminating ghost nets.
Can I also buy your products in the store?
Parts of our collection are available in select shops in Switzerland and Bali. However, not the entire collection is available in the store, so we can pass our collection on directly to you and keep our prices fair.
Do you have special collections for children?
Yes, we also offer sustainable swimwear for children. Our designs are comfortable, durable and perfect for little adventurers.
How can I contact you if I have questions?
You can contact us at any time by email at info@maindesign.ch or via our contact form on the website. We usually respond within 24 hours.
Where can I be informed about new collections and offers?
Sign up for our newsletter to be informed about new collections, exclusive offers and exciting news. Follow us on our social media channels!
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