About the Brand
Born from a passion for the ocean and a desire to create with purpose, ONESEA® is more than a surfwear brand — it’s a movement.
ONESEA® was born in 2020, with its first collection launched in 2021 — right in the middle of a time when the world was standing still and felt and urge for living! From the start, the mission has been clear: to encourage the practice of water sports, such as surfing, not only for its therapeutical benefits and power to improve our well-being, but also as a way to raise awareness for ocean conservation.
The brand follows the words of Sir David Attenborough:
That belief is at the core of everything we do. With a background in product design, a growing concern for sustainability, and an endless curiosity to experiment, I decided to launch a brand that reflects these values. ONESEA® was created to offer sustainable surfwear that’s designed for movement, comfort, confidence, and courage.
“No one will protect what they don’t care about; and no one will care about what they have never experienced.”
Made with Purpose
Every piece in our collection is designed and produced locally in Portugal, in small batches, with care and intention. We exclusively use ECONYL® nylon, a regenerated fiber made from plastic waste recovered from the ocean. It can be recycled and transformed again and again — helping us build a truly circular and sustainable system.
By choosing ONESEA®, you're not just supporting a brand — you're joining a movement that values quality, conscious living, and the planet.
The Experience
In 2024, ONESEA® expanded its mission by launching surf trips designed especially for women — curated experiences that bring together ocean lovers to connect, explore, and grow as a community. Each trip is an opportunity to live what the brand stands for: a life close to the sea, active, healthy, and sustainable.
These experiences aim to empower women to share their love for the ocean and create lasting memories. They’re about more than surfing — they’re about building bonds, learning, and feeling supported.
As the founder, my vision for ONESEA® goes beyond surfwear. I want to build a community of women who lift each other up, inspire one another, and share a safe space to express their passion for the ocean and for the planet.
The name originates from onesie + sea, but it also means “one sea” to stand out that there is only one and that we should protect it in order to continue enjoying it. The slogan follows our goal to make, peace, while enjoying the ride and remembering to be kind to others and to the planet we live in.
Name & Slogan
Brand Goal
The brand goal is to create comfortable and sustainable beach and water sport products, such as surfing. The brand pretends to achieve this in a cyclic and sustainable process, by using upcycled materials, raising awareness and promoting a more ecological life.
Why Onesea?
ONESEA emerged with the goal of encouraging water sports such as surfing, considering that these are therapeutic and capable of improving our well-being, but also to raise awareness and make more people experience and care about the ocean.
About me
A millennial product designer with an unstoppable curiosity for how things work and a passion for creating. Growing up by the Portuguese coast, the ocean has always been my second home—whether surfing, wakeboarding, diving, or simply exploring. Believing in the sea’s therapeutic power, I founded ONESEA® to connect people with the ocean through apparel, branding, and transformative surf trips. From design to marketing, I manage it all, driven by a mission to inspire ocean stewardship and help others enjoy and protect the sea while feeling comfortable and confident.
Inês Viana (Founder)
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