FOR THOSE RUNNING WITH PURPOSE.
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FOR THOSE RUNNING WITH PURPOSE.
Sustainability shapes everything we do — from the materials we choose to the partners we work with and the durability of each piece. For us, there’s no contradiction between sustainability, running, and style — it’s essential in the long run. We’re constantly working to reshape our brand, our industry, and the culture around us. We’ve come a long way, but there’s still further to go. And it’s all possible because of you.
Repreve® recycled polyester was developed by the American multinational UNIFI, Inc. and is produced from recycled PET bottles, reducing the need for virgin raw materials and contributing to the circular economy. This upcycling process significantly reduces the environmental impact associated with conventional polyester production. In addition to being highly durable and quick-drying, Repreve® maintains the performance of a technical fabric, with excellent durability and wear resistance, ideal for running.
Developed by the Belgian multinational Rhodia, Amni Soul Eco® biodegradable polyamide was the world's first yarn manufactured with additives that accelerate the decomposition of the material when disposed of in landfills (10 times faster than a common synthetic fiber) and the decomposition of microplastics released into laundry water (20 times faster than other similar yarns). Unlike conventional polyamide, which can take hundreds of years to degrade, Amni Soul Eco® boasts excellent strength, elasticity, and comfort, possessing all the important characteristics of polyamide 6.6 and offering superior technical properties, such as moisture management and high breathability, while also being 100% recyclable.
We select each garment with the same rigor we dedicate to design, and all garments undergo an audit by our team before being allowed to work with us. See below for an example of these audits.
We only work with partners who value their employees, ensuring fair, safe working conditions, and fair pay. These garment manufacturers invest in technology to reduce waste and scraps, and we maintain a close and transparent relationship, ensuring that each piece is produced with respect for its makers.
More than suppliers, they are extensions of our purpose: to create sophisticated, technical apparel that respects people and the planet.
Unfortunately, accidents happen — even mid-run. As much as we try to prioritize safety during training and racing, damage to apparel can sometimes be unavoidable. We want your gear to last as long as possible. That’s why we operate our own in-house repair service.
If your item has been damaged, you can fill out the form below and reach out to us. We’ll provide country-specific instructions on how to ship your product correctly. Please note: this is not a return for a defective item, but a repair for a product damaged through use.
Please note that you will be responsible for:
— All shipping costs (to and from our facility)
— All repair costs.
— Sending only clean garments
To contact us, email contato@diesmercuri.com and include the country you’ll be shipping from.
At Dies Mercuri, we move beyond running. We take part in initiatives that reflect our values — like cleanup efforts with Sea Shepherd — connecting our community to meaningful causes and helping preserve the natural spaces where we run.
We believe every step matters. Small actions, when combined, lead to lasting change — on the streets and beyond.
If you’re leading an initiative you’d like to see supported or shared with our community, please do not hesistate to get in touch.
Nothing here is by chance. Our cuts are precise, and our patterns are calculated to maximize fabric use — reducing scraps and avoiding excess that, in other brands, would become waste. By minimizing production waste, Dies Mercuri’s design becomes an active part of our sustainability efforts.
Our design avoids trends. These are pieces made to outlast seasons — clean visuals, essential forms, far from planned obsolescence. Longevity is also a matter of design. Every seam, finish, and technical detail is made to withstand continuous use — in training and in life.
We were born at the intersection of performance, design, and culture — with the dream of bringing conscious runners together around a shared movement.
Dies Mercuri wouldn’t exist without its community, which began to form even before the brand’s official launch. Few things are more rewarding than gathering people who share the same lifestyle around running — and, together, reshaping the running experience.
Today, we continue to grow as a community that connects São Paulo to other cities, hosting monthly group sessions: Dies Mercuri Workouts, and private trail run: Dies Mercuri Expeditions.
If you haven’t joined us yet, follow us on Instagram and Strava to stay updated on our next events.