Primark Joins Denim Deal to Scale Recycled Cotton in Denim

Primark has joined the Denim Deal, a multi-party collaboration with brands, manufacturers, suppliers and recyclers that aims to increase the share of recycled cotton in denim production, the retailer announced.

The membership gives Primark access to industry expertise, technical and sourcing support, and joint research and development opportunities. The stated objective is practical: to identify workable routes to raise the volume of post-consumer recycled cotton used in its denim ranges by learning from other participants in the scheme.

The move extends a programme that already has measurable output. In 2024/25, 8% of denim units sold by Primark met its circular-by-design criteria — roughly one unit in every twelve — a benchmark the retailer now aims to lift through shared knowledge inside the Denim Deal network.

What has Primark already delivered on recycled denim?

Earlier this year, Primark launched its first capsule denim collection made from reclaimed denim. Every product in the five-piece range contained a minimum of 20% recycled denim, produced by recycling discarded denim textiles into new cotton fibre.

The collection was also engineered to remove common end-of-life recycling barriers. Design changes addressed stretch materials and unnecessary metal components such as rivets, both of which complicate fibre recovery when garments are discarded.

The retailer is applying the same design logic more broadly through its updated Circular Product Standard 2.0, which concentrates on three areas:

• durability;
• materials;
• recyclability.

The 8% circular-by-design share for 2024/25 is the first published performance figure against that standard for the denim category.

How does this fit Primark's wider materials strategy?

The Denim Deal membership follows a separate supply agreement signed last month. Primark concluded a multi-year offtake partnership with Circ, a textile-to-textile recycler, to introduce recycled polyester made from textile waste into future product ranges, with first product delivery starting in 2029.

That agreement was the retailer's first multi-year offtake deal with a textile-to-textile recycler. It is intended to raise the use of circular materials and reduce Primark's dependence on virgin polyester, in line with its published sustainability targets.

Taken together, the two moves signal a shift from pilot-level circularity — a five-piece capsule — toward volume commitments across fibres. The Denim Deal addresses recycled cotton; the Circ offtake locks in recycled polyester supply from 2029.

What are the open questions for suppliers?

Primark has not disclosed the recycled cotton percentage it targets for its denim ranges, the timeline for expanding beyond 8%, or the pricing terms it will accept for recycled fibre inputs. The Denim Deal's collaborative research and sourcing support is intended to address capacity and technical constraints, but no capacity figures or investment amounts accompanied the announcement.

For Primark's denim suppliers, the practical implications are design constraints already visible in the capsule collection: reduced stretch content, fewer metal elements, and minimum recycled-fibre thresholds. The pace at which those requirements extend from a five-piece capsule to full denim ranges will determine the scale of reformulation across the supply base.

Primark said it aims to build on its existing circular design work by exploring practical opportunities with Denim Deal participants to further increase post-consumer recycled cotton use in its denim, with results to be measured against future reporting of its circular-by-design share.