Éco-conçu depuis 2017.
Mesuré depuis.
The study we are about to present is part of the ongoing eco-design approach of La Pièce Paris, a method in place since 2017.
The commitment to ethical and sustainable fashion has led La Pièce to explore new ways to minimize our ecological footprint, while preserving the elegance that characterizes our creations. This in-depth study of the environmental impact of the products, conducted in collaboration with the environmental consulting firm Deceo, is fully part of this quest for ecological excellence. Discover below the results of this exploration, which confirm the brand's commitment to responsible fashion that respects our planet.
Environmental Impact Analysis
Within the eco-design approach, La Pièce Paris has undertaken an in-depth study of the environmental impact of our products, relying on the Life Cycle Analysis evaluation tool.
This approach has made it possible to measure the virtue of the brand's items created with eco-designed fabrics compared to their equivalents in mass retail.
Measure the real impact, step by step
The collaboration with the environmental consulting firm Deceo began with awareness-raising on eco-design, highlighting the importance of the circular economy and the Life Cycle Analysis methodology.
This made it possible to determine an environmental score and compare different scenarios considering various parameters, such as mass, material choice, and manufacturing location. The research team kept in mind the essence of the multi-stage concept in the life cycle of La Pièce's garments, as well as the multiple impacts that go beyond the simple measurement in equivalent kilograms of CO2.
This rigorous assessment focused on three of our items, requiring close collaboration with La Pièce's suppliers.
The firm sought data related to the environmental impact of their innovative materials, exploring several environmental aspects. This data was essential to enrich the Base Empreinte, a calculation reference provided by Ademe.
Moreover, La Pièce and Deceo conducted a detailed analysis of the components of the items, from outer fabrics to linings, including zippers. The goal was to ensure a comprehensive collection of all relevant information before making decisions on which elements to consider or disregard.
De l'intuition à la donnée
Deux études, menées dans la durée
2022 — Première mesure, avec Deceo
Une sensibilisation à l'éco-conception et à l'économie circulaire, puis une Analyse de Cycle de Vie sur trois pièces, comparées à leurs équivalents de grande distribution.
Fabriquées en France, portées par un mix électrique décarboné, ces pièces ont confirmé l'intuition : produire ainsi change vraiment l'impact.
2023–2025 — Aller plus loin, avec Lucioles Conseil
Pendant plus de quatorze mois, douze pièces emblématiques ont été ouvertes et décortiquées : pesées, leurs composants identifiés un à un, leur parcours retracé — de la filature au tissage, de la teinture à la confection.
Les enseignements ont ensuite été intégrés dans Ecobalyse, l'outil du Ministère de la Transition Écologique, pour mesurer l'effet de chaque choix.
Ce que la mesure montre
Sources : ACV menées avec Deceo (2022) et Lucioles Conseil (2023–2025), Base Empreinte Ademe.
Thanks to the manufacturing of items in France, combined with a decarbonized electricity mix, the process was approached with a certain peace of mind. The results of this assessment were sources of satisfaction and validation for our choices.
For example, the CAMDEN women's reversible fleece jacket emits 75% less CO2 than that of a leader in the sports goods industry. Similarly, the DIAGONAL fanny pack shows a 40% reduction in CO2 emissions and a 32% decrease in fossil resource use.
Thus, this study supports that La Pièce's clothing range stands out for its low environmental impact, further proof of the brand's commitment to ethical and sustainable fashion.
This study is supported by:
It all starts with a simple idea: designing clothes that adapt, transform, and stand the test of time.
For over fourteen months, La Pièce Paris has undertaken in-depth work to get to grips with the material—quite literally.
For several months, the brand opened up its garments, processes, and intuitions, confronting them with the reality of data and usage.
Alongside the environmental consulting firm Lucioles Conseil, twelve iconic pieces were first subjected to a Life Cycle Assessment.
Each garment was taken apart: precisely weighed, its components identified one by one, and its journey traced—from spinning to weaving, and from dyeing to garment making.
Behind every stage lie places, expertise, and choices that already invite scrutiny.
But very quickly, the work moved beyond the theoretical framework.
At the same time, patternmaking work began to explore new approaches to garment construction. Adjusting, simplifying, optimizing… but also rethinking how garments interact with one another.
Because at La Pièce Paris, modularity is at the heart of the approach: a wardrobe designed as a system, where pieces can be combined, transformed, and evolve.
Using links or fastening systems, a sleeveless puffer jacket can be attached to a parka, while a button-on hood can be added to a new version of the bib...
This design approach opens up new possibilities for use, while also raising specific technical questions—attachment strength, assembly durability, and material compatibility—which were incorporated into the patternmaking process.
Another question arose along the way: what happens after the purchase?
Sustainability is not determined solely at the design stage.
The brand therefore explored the relevance of a repair service—its impacts, constraints, and true value in extending the life of components.
At every stage, the assumptions were tested, sometimes confirmed and sometimes challenged.
In a second phase, the lessons learned were incorporated into the French Ministry for Ecological Transition’s Ecobalyse tool to simulate improvement scenarios.
Changing a material, adjusting a component, modifying a process: all decisions whose effects could be measured concretely.
This back-and-forth between real-world experience and modeling helped produce more refined versions of the products, combining environmental standards, quality, and aesthetic consistency.
This meticulous work takes place in a rapidly changing context, with the introduction of Environmental Labeling planned for October 2026.
Rather than wait, La Pièce Paris has chosen to anticipate this change by gradually making information about the impact of its products available.
More than a compliance exercise, it is a way to share the journey so far—with its doubts, lessons learned, and trade-offs.
Because behind every piece, there is now more than just a style: there is a measured, tested story that is constantly improving.
