Foundations · 05 of 07
3 min read
The role of design
Most of a product's impact is locked in before the first piece of cloth is sewn. Design decisions determine what its passport can say later.

Most of the impact is decided before production
The European Commission's own ecodesign materials put the share of a product's environmental impact decided at the design stage at more than 80 percent. For a garment that means fibre choice, construction, and the provision made for repair set the ceiling; everything after is adjustment within it.
Mono-material wins on nearly everything
A single fibre type is easy to sort, easy to recycle, and scores better on the material grade. Tight blends, especially those high in elastane, effectively close off the recovery routes that exist today. The JRC's third milestone modelling, illustrative rather than law, scores blends above 15 percent elastane at zero for recyclability. The direction is not subtle.
Joins that can be opened
Buttons, thread, and labels that can be removed give each component its own way back. Adhesives and lamination do the opposite, and that shows up in the third chapter, When you are done with it.
Durability is a design decision
Hems that can be resewn, reinforced seams, and patterns that leave extra cloth for alterations all lengthen the wearing life, and wearing life is the metric that even brands with data are least likely to hold. France's scoring method reads repair provision directly into its durability coefficient, so a standing repair offer is not only service, it is score.
Design choices become fees
From April 2028, national producer-responsibility schemes for textiles are due to be operational across the EU, with fees banded by recyclability, recycled content, and footprint. This is where a design decision converts into money: the mono-material piece pays a lower fee than the tight blend, year after year.
The essentials
- Mono-material pays off in grade, in sorting, and in recycling.
- Joins that can be opened give every component a way back.
- Durability is decided in the pattern and the construction, not in the copywriting.
- From 2028, EU producer fees are banded by design outcomes. Better-designed products pay less.
Primary sources
- European Commission ecodesign materials: over 80 percent of impacts decided at design
- JRC third milestone: illustrative thresholds, including the elastane effect on recycling
- Directive (EU) 2025/1892: textile producer responsibility, schemes due April 2028
Time-bound claims in this module are re-verified at every JRC milestone. Last checked 19 Aug 2026.
Where we stand
Mula is not affiliated with the European Commission, the JRC, or any certification body. We describe rules in our own words and cite the clause. Using Mula is not registration of anything, and nothing here is a statement about your product's legal standing.
Nothing here is stored in this tab. This article has its own address, so a bookmark brings you back to exactly this point tomorrow.