OUR VISION
A RESPONSIBLE GARMENT IS, ABOVE ALL, A GARMENT THAT STANDS THE TEST OF TIME
Soeur champions a certain vision of sustainable fashion — pieces that are passed down and endure through time. It guides our ambition to make each of our collections, season after season, more ethical, more qualitative and more respectful of our planet, today and for tomorrow.
In embracing this commitment to sustainability, we place emphasis on the recyclability of our products at end of life by prioritising unmixed materials. In 2025, more than 60% of our textile pieces were single-fibre.
We believe in a timeless fashion that transcends seasons and can be worn all year round. That is why we created a permanent collection "wardrobe". We have also conducted laboratory durability tests to perfect our products and offer them the best possible longevity.
Images of our workshops and our Parisian style studio
OUR FIRST PRINCIPLE
lasting and local relationships
In 2025, more than 64% of pieces are produced in near-import (Europe & Maghreb).
In our vision of slow fashion, we place emphasis not only on the durability of our pieces but also on the durability of our relationships, building loyalty with our partners. 43% of them have been working with us for more than five years. These suppliers know our products, our standards, and work alongside us to improve our designs. That is why we do not limit ourselves to their geographic location. However, we do our utmost to develop new local partnerships, in Europe or the Maghreb.
These lasting commitments give them the financial stability needed to implement social programmes within their factories and, in turn, to improve their own production chains.
OUR CONVICTION
KNOWING MORE TO MAKE BETTER: TRACEABILITY
This is the first priority of our CSR approach, and it is paramount. It is through traceability that we carry out social audits, improve our processes and guarantee this transparency to our customers by knowing the location and the methods used at each stage of our production.
In March 2022, Soeur joined the ICS (Initiative for Compliance and Sustainability) in order to assess the working conditions of its suppliers and support them in their improvement journey. This allows us to reduce social and environmental risks while continuously improving the quality and durability of our products.
In 2024, nearly 95% of tier 1* suppliers were audited against demanding social methodologies. We also extended our audit strategy to our tier 2 and tier 3 partners, with respectively 69% and 74% of known suppliers audited.
*DID YOU KNOW?
A garment's manufacturing chain comprises 4 main stages: production and extraction of raw materials, transformation of raw materials (spinning), weaving, knitting, dyeing or printing, and finally assembly. As a brand, we are in direct contact with our garment manufacturers (tier 1) and sometimes with our materials suppliers (tier 2). Encouraged by the introduction of the AGEC law, we question our suppliers about the origin of the preceding stages.
Images of pieces from our collaboration with K-Way, September 2023
Our environmental impact
towards more responsible collections
We take care to prioritise the use of more sustainable raw materials in the development of our collections.
To this end, we have created our own eco-responsible standard, which serves as our guide. Without ever ceasing to question ourselves, we chose in 2023 to revisit our definition of eco-responsibility at Soeur to make it more demanding. From that point, viscose and Oeko-Tex certification are no longer sufficient to be considered eco-responsible at Soeur (except for silk).
The Spring-Summer 2024 and Autumn-Winter 2024 collections include 40% eco-responsible Soeur pieces, surpassing our target of 36%.
The Spring-Summer 2025 collection already contains more than 51% eco-responsible products.
Regarding manufacturing processes, we are constantly researching techniques that reduce our impact, whether in terms of resource use or discharges into nature. Collaborations are often an opportunity for us to experiment with new materials: with Léandra Medine Cohen, we selected from stocks of fabrics used in previous collections. With K-way®, we tested a 100% recycled material developed by their team.
our commitment
a committed team
We are firmly convinced that the brand's commitment must be a shared one, carried by all our teams, so that our projects and vision are brought to life. In 2024, five team members were trained as facilitators of the Climate Fresk in order to reach 100% of headquarters staff by 2025.
Find all our actions and objectives in our 2024 CSR report.
OUR SECOND-HAND PLATFORM
FOR A MORE RESPONSIBLE FASHION
SOEUR champions a vision of sustainable fashion — pieces that are passed down and endure through time. To go further in this approach, Soeur launches Soeur Second Hand, a platform that allows you to buy second-hand or resell the Soeur pieces you no longer wear in exchange for an immediate store credit, redeemable online or in boutique.
Buying a second-hand garment rather than a new one reduces its environmental impact by 80%, avoiding greenhouse gas emissions, water consumption and the pesticides required to produce a new garment.
A tangible solution in the pursuit of circular, responsible fashion.