How do fashion brands rate for the materials used?
We looked at the materials used by high street fashion brands.
As well as plastics, you can also sometimes find phthalates, brominated flame retardants, PFAS, and lead in high-street clothing; all highly toxic substances with poor (and at times practically zero) biodegradability. Shein is one brand named by a recent Canadian investigation for using toxic substances.
We awarded marks for companies who were signatories of Zero Discharge of Hazardous Chemicals (ZDHC), a multi-stakeholder programme for responsible chemicals management in the fashion sector. It was set up in response to Greenpeace's Detox Fashion campaign and includes a set of guidelines and commitments. Current signatories include ASOS, Fast Retailing, H&M, Inditex, M&S, Mango, Next, Primark, and River Island.
To understand what the most-used materials are in high-street clothes, we looked at materials use by weight in some key brands that disclosed figures. Often, companies had a category for “other” without describing what it had counted, so we have only provided figures for what was publicly disclosed.
Marks were awarded for either more than 95% or over 50% more sustainable fibres, including secondhand, recycled natural fibres (not synthetics), organic fibres including cotton, hemp and linen, conventional hemp or linen, Fairtrade cotton, and closed-loop processed plant-based fabrics such as Tencel. Fewer marks went to companies with less sustainable materials including recycled synthetics or Better Cotton.
Sample of fashion brands and the fabrics they use, listed by A to Z of brand
Company |
Polyester |
Other petroleum-based fabrics |
Cotton |
Animal-based |
Recycled/upcycled origin |
Organic fibres |
Boohoo |
85%* |
Not disclosed |
Not disclosed |
Not disclosed |
Not disclosed |
1.65% cotton |
H&M |
21% |
3% |
61% |
1% |
24% total |
Not disclosed** |
Inditex |
27% |
Not disclosed |
41% |
Not disclosed |
Not disclosed |
4.2% cotton |
Mango |
54%*** |
Not disclosed |
46%**** |
6% |
11% total |
Not disclosed |
Next Plc |
31.2% |
4.4% |
52.1% |
1.1% |
13% polyester |
Not disclosed |
Patagonia |
18% |
Not disclosed |
15% |
1% |
33% cotton, 98% total |
100% cotton |
Shein |
64% |
6% |
10% |
Not disclosed |
<1% polyester |
Not disclosed |
*Combined figure for polyester and cotton, it did not separate these. It has been reported that 49% of Boohoo’s materials are made from petrochemicals.
**H&M says that it is “the world’s largest user of organic cotton”. It did not say how much it used.
***It did not provide a separate figure for polyester, and combined fibres of “synthetic origin”.
****It did not provide a separate figure for cotton, and combined fibres of “natural origin” including cotton, wool, and linen, “among others”.
Which clothing brands scored worst for sustainable materials?
The worst high street/online clothing brands for sustainable materials use (scoring 0/100) were:
- ASOS: ASOS, Miss Selfridge, Topman, Topshop
- Boohoo: Boohoo, Burton, Coast, Debenhams, Dorothy Perkins, Oasis, Wallis, MissPap, Karen Millen, Nasty Gal, Warehouse, Pretty Little Thing
- Frasers Group: I Saw It First, Jack Wills
- TJX: TK Maxx
- PDD Holdings: Temu
Amazon just scraped in with 10/100.
Do are clothing brands score well for sustainable materials?
The highest scorer for sustainable materials was M&S with 60/100. It stated that 100% of its cotton was from sustainable sources which meant Better Cotton, organic or recycled. From its discussion it seemed that this was mostly Better Cotton. It also stated that in 2021/22 a total of 35% of its polyester was recycled. It was therefore considered to be using at least 50% of somewhat sustainable materials.