Our mission is to inspire socially and environmentally responsible fashion starting from the very first layer you put on.

Our Story

In 2020, BON+BERG set out not only to design high-quality undies and bras but to increase awareness of the environmental and social impacts of the fashion industry.

Our name is a reflection of our values. BON means 'good' in French. We aim to be good in as many ways as possible: comfortable, environmentally friendly, and ethical. BERG translates as 'mountain' in German. To our company, mountains are a symbol of strength, integrity, and nature.

We produce underwear with minimal impact on the environment and minimal waste. We also believe transparency and accountability are key to transforming the fashion industry. So, we’re inviting you to come with us on our journey. Together, let’s strive for a cleaner, more conscious future.

Meet the founder

Siobhán, also known as ‘Bon’ to her family and friends, is the founder of BON+BERG. When she decided to start the brand, her aim first and foremost was to design soft, comfortable underwear and bras using natural materials without all the bulky padding and underwire. The minimal designs of BON+BERG are a reflection of her own understated style.

When the idea first came about, Siobhán knew the products could only be made of sustainable materials and that each and every step along the supply chain should be considered.

She also wanted to use the brand as a way to spread awareness about climate change and the devastating impacts of fast fashion on the planet. The website is, therefore, a source of information and inspiration for those who would like to learn how to be more sustainable.

Much like climbing to the top of a mountain, achieving a more sustainable lifestyle requires commitment and can only be reached one small step at a time.

The values of BON+BERG are driven by Siobhán’s passion for nature and love of the mountains.

We passionately believe that sustainability is not just some fad but a moral imperative.

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Providing sustainable clothing options starting from the bottom up gives customers the power to make small changes that can help the environment and humankind.

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Respect for people and nature is paramount. Let’s end the exploitation of humans and the environment for individual profit.

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Transparency and accountability are at the core of sustainable fashion.

Our values

Sustainability is deeply embedded in our values and woven into each link of our supply chain.

Our design philosophy

Our undies and bras are carefully designed. We think about our products in a circular way.

All our manufacturing processes are carried out with the utmost respect for people and the planet. We believe simple, high-quality, and made to last are the key tenets of sustainable apparel.

Responsibly sourced materials

We only use responsibly sourced biodegradable materials that are gentle on the earth, soft on your skin, and breathable.

That means your underwear will not only be more comfortable and last longer, but once they do eventually reach the end of their life, the material won’t take hundreds of years to return to the earth.