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9seed sells clothing that we checked fibre by fibre for natural, non toxic materials. See its verified sustainability rating and review to help you buy natural, non toxic clothing.
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44 / 5Eco rating · Mostly natural
🎟 1 free read · a free account gives 3 reads a month

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By the numbers

Plant fibre
Verified
92%
PLANT OTHER
0% animal · 8% synthetic
Catalogue
scanned
No sampling
5050SCANNEDTOTAL
100% of the catalogue read, style by style
Sourcing
transparency
On record
0/5
farm-to-shelf, checked against sources
Plant fibre, brand by brand
Throne Standard scan
92%100%100%97%87.6%69.7%62%58.9%29.2%26.5%9seedTerraThreadKentHarvest &MillKotnEverlanePactMATE theLabelPatagoniaGymshark
9seed composition
50 styles
92% PLANT
Plant92%
Animal0%
Synthetic1%
Semi-synth7%
Instant fibre checkfree · no login

Tap any fibre to see its class and whether it is in 9seed. The same engine that scores every brand.

Cotton

🔍 9seed is 1 of 1,000+ brands we scan fibre by fibre. See 9seed’s full 43-style breakdown

Every sku, scored

Every product read fibre by fibre

50 styles92% plantNo sampling50 read
Plant 92%Animal 0%Synthetic 1%Semi 7%
#StyleCompositionClass
01TULUM low back maxi in lightweight gauze - lilac100% cottonPlant
02TULUM low back maxi in lightweight gauze - peony100% cottonPlant
03TULUM low back maxi - peony100% cottonPlant
04
05
06
07
08
09
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#StyleCompositionClass
01TULUM low back maxi in lightweight gauze - lilac100% cottonPlant
02TULUM low back maxi in lightweight gauze - peony100% cottonPlant
03TULUM low back maxi - peony100% cottonPlant
04TULUM low back maxi - lilac100% cottonPlant
05TULUM low back maxi - ocean100% cottonPlant
06TULUM low back maxi - moss100% cottonPlant
07TULUM low back maxi - dahlia100% cottonPlant
08TUNISIA short sleeve caftan in lightweight gauze - lilac100% cottonPlant
09TUNISIA short sleeve caftan in lightweight gauze - peony100% cottonPlant
10CARMEL slip dress in naked - moroccan blue84% rayon / 16% nylonSemi-synthetic
11CARMEL slip dress in naked - chocolate84% rayon / 16% nylonSemi-synthetic
12TUNISIA short sleeve caftan in lightweight gauze - ocean100% cottonPlant
13TULUM low back maxi in lightweight gauze - ocean100% cottonPlant
14ST TROPEZ ruffle mini - ocean100% cottonPlant
15TULUM low back maxi in lightweight gauze - moss100% cottonPlant
16TUNISIA short sleeve caftan in lightweight gauze - moss100% cottonPlant
17ST TROPEZ ruffle mini - moss100% cottonPlant
18ST TROPEZ ruffle mini - moroccan blue100% cottonPlant
19TULUM low back maxi in lightweight gauze - kelly100% cottonPlant
20TUNISIA short sleeve caftan in lightweight gauze - dahlia100% cottonPlant
21TULUM low back maxi in lightweight gauze - dahlia100% cottonPlant
22ST TROPEZ ruffle mini - dahlia100% cottonPlant
23TULUM low back maxi in lightweight gauze - chocolate100% cottonPlant
24TULUM low back maxi in lightweight gauze - pacific100% cottonPlant
25TULUM low back maxi in lightweight gauze - moroccan blue100% cottonPlant
26TUNISIA short sleeve caftan in lightweight gauze - moroccan blue100% cottonPlant
27TUNISIA short sleeve caftan in lightweight gauze - kelly100% cottonPlant
28ST TROPEZ ruffle mini - chocolate100% cottonPlant
29TUNISIA short sleeve caftan in lightweight gauze - pacific100% cottonPlant
30CARMEL slip dress in naked - moss84% rayon / 16% nylonSemi-synthetic
31PAREO mini in lightweight gauze - black100% cottonPlant
32TUNISIA short sleeve caftan in lightweight gauze - chocolate100% cottonPlant
33TULUM low back maxi - chocolate100% cottonPlant
34CARMEL slip dress in naked - black84% rayon / 16% nylonSemi-synthetic
35SARDINIA midi skirt in double gauze - latte100% cottonPlant
369seed gift cardThis site has limited support for your browser. We recommend switchingNot stated
379seed rope belt100% cottonPlant
38ST TROPEZ ruffle mini - black100% cottonPlant
39ST TROPEZ ruffle mini - pacific100% cottonPlant
40ST TROPEZ ruffle mini - white100% cottonPlant
41THE PINES beach pant in double gauze - black100% cottonPlant
42THE PINES beach pant in double gauze - pacific100% cottonPlant
43THE PINES beach pant in double gauze - white100% cottonPlant
44TULUM low back maxi - black100% cottonPlant
45TULUM low back maxi - white100% cottonPlant
46TULUM low back maxi in lightweight gauze - black100% cottonPlant
47TULUM low back maxi in lightweight gauze - white100% cottonPlant
48TULUM low back maxi - pacific100% cottonPlant
49TUNISIA short sleeve caftan in lightweight gauze - black100% cottonPlant
50TUNISIA short sleeve caftan in lightweight gauze - white100% cottonPlant

Tick what your skin reacts to. We check it against the verified composition, live

✓ 9seed passes every one

Every tick is checked against each style’s stated composition, live.

  • ✓ 45 of 50 styles with a stated composition are purely plant fibre
  • ✗ 4 styles contain nylon, lycra or ECONYL. Flagged red when ticked

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The brand
Brand

Who’s behind it

Sourcing

  • 91.8% plant fibre

Getting It

Contact

  • Website
  • Ethics
  • Instagram
  • Email

Where this brand isn't perfect

Straight talk

Where 9seed isn’t perfect

Check firstNot a certified B Corp

9seed is not a B Corp. The brand-level labels are thinner than the product-level ones.

What the label won’t tell you

The questions sensitive skin actually asks, answered

✓ 50 of 50 styles scanned, no sampling ✓ 92% plant · 8% synthetic ✓ read from the live product feed, not the marketing page
Are there hidden chemicals against my skin?

50 of 50 styles scanned: zero PFAS, zero formaldehyde.

Is "sustainable" just greenwashing?

“Eco” and “green” have no legal meaning, and thousands of unverified claims flood the market. We scanned 50 styles from the store’s own product feed and publish a score only at full coverage. We read certificates, not adjectives.

Is "100% cotton"
actually
100% cotton?

Most “cotton” underwear hides elastane or spandex in the trims. We read the stated fibres on 50 of 50 styles, thread by thread: 92% plant, 8% synthetic.

8%
Will the elastic bring me out in a rash?

Latex and rubber waistbands are a top trigger for contact eczema. Elastic check across the catalogue: No elastane.

Where's it really made,
and by whom?
Named farm and factory
GOTS chain of custodyTraceable back to the cotton

Traceability on record: see ledger. We publish the full sourcing chain and the honest red flags, including where sources conflict.

Am I shedding microplastics onto my body?

Synthetic underwear sheds plastic fibres onto your skin and into the water with every single wash. 9seed is 8% synthetic, so yes. These styles shed. Wash cool, use a guppy bag, and favour the plant-fibre options in the range.

Sources: consumer research on formaldehyde in easy-care fabrics (~9% of people react), PFAS in water- and stain-resistant finishes, and hypoallergenic underwear for eczema and contact dermatitis.

Confirmed at the source

What we verified, style by style

9seed · read from the live product feed
50/50
styles scanned in full, no sampling, no marketing page
✓ Cleared
Plant fibre vs similar brands
9seed92%
Vietopia100%
SÜK Workwear100%
SoftShirts100%
The Turkish Towel Company99%
Throne Standard scan · whole catalogues, never a sample
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Checked against the source
92% plant fibre1% synthetic✓ No elastane
Why it earns 4

These sustainability features have been manually verified

✓Each feature below was checked against the product feed and the brand's own documents. Not self-reported ticks.
What's actually in the fabric?
Fibre mix on record: 92% plant · 8% synthetic or semi. Not certified
Who makes it, and how?
Woman-owned. Not certified
Vegan. Not certified
Fairtrade & GOTS factory. Not certified
1% for the Planet. Not certified
What happens after checkout?
Carbon-neutral shipping. Not certified
Compostable packaging. Not certified
Low-impact dyes. Not certified
Company-level GOTS / B Corp. Not certified
GOTS. Fibre & processingGlobal Organic Textile Standard. Certifies the organic fibre AND chemical-free processing from field to finished garment. The strongest single label. Verify a brand's licence at global-standard.org. OEKO-TEX 100. Finished fabricIndependently tests the finished fabric for PFAS, BPA, azo dyes, formaldehyde and heavy metals. The fabric is certified; the brand as a company may not be. B Corp. The companyCertifies the whole company's social & environmental performance. Not the same as a product-level certificate. 1% for the PlanetDonates 1% of revenue to environmental causes. Real but lighter than a product-level label.
Fibre
92%

plant fibre across all 50 styles, read style by style from the live product feed. No sampling, no marketing page.

Cotton

On record. Cotton certification not documented. Flagged in the ledger.

Factory

Not named publicly. Factory certifications not documented. See the sourcing ledger.

Extras

Low-impact finishes. Chemical flags and dye chemistry are recorded for every brand we scan.

Packaging

On record. Packaging claims not documented. See the full record.

Checked against the official register

Every certifier this brand claims, with a direct link to the proof where it exists, or flagged where it is only the brand’s word.

Compare

What you'd be wearing otherwise

9seed

9SEED THIS BRAND

92% plant fibre8% synthetic / semino GOTS certificationfibre score 4 / 5 · Mostly natural

PACT

62% plant fibre35% synthetic / semino GOTS certificationfibre score 2 / 5 · Mostly unnatural217 styles scanned
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Real figures from the Throne Standard scan: 9seed 92% plant / 0 styles · Pact 62% / 217 · MATE the Label 58.9% / 106 · Patagonia 29.2% / 0 · Gymshark 26.5% / 1793 · Harvest & Mill 97% / 135 · Terra Thread 100% / 44 · Everlane 69.7% / 733 · Kotn 87.6% / 1032 · Boody 0% / 156 · Kent 100% / 40.

A peek at the leaderboard

The clothing fibre index

🔍
Green 4 to 5/5 24 3 / 5 1 2 / 5 0 1 / 5 0 100% plant 23 Plastic-free 25 GOTS 6
#BrandPlant fibreFibre scoreSKUsGOTS
🔒

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Before you buy

Straight answers

Is 9seed sustainable and ethical?+
On the Throne Standard, 9seed reads 91.8% pure plant fibre across 50 styles from its own catalogue, a 4/5. Good On You rates 9seed It's a start.
What is 9seed made of?+
Across the 50 styles read, 91.8% are 100% pure plant fibre, 0.0% synthetic and 0.0% blended.
Where is 9seed made?+
9seed is based in United States.
How does 9seed rate on Good On You?+
Good On You rates 9seed It's a start: planet Not good enough, people Not good enough, animals Good.
How many 9seed products were scanned?+
50 styles were read in full from 9seed's live catalogue, 100.0% carrying a stated composition.

Independent ratings

How Good On You rates 9seed

DirectoryMarkWhat it measuresChecked
Good On YouIt's a startPublished policy and supply-chain disclosure across planet, people and animalsSeptember 2022
The Throne Scan4/5Mostly naturalRead from the composition of what 9seed actually sells.n/a

Ethics not assessed: no sourcing or labour evidence on file.

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The complete clothing data behind the score

  • ·
  • Woman-owned
Certifications
Sourcing & supply chain 🔒 full ledger with account

Where the materials come from, who makes it, and how traceable it is.

Raw material origin
Processing & manufacture
Chemical safety
Resale programmeNot offered
Assessment & sources
Scan coverage & transparency 🌿 free
0products in catalogue
0products read (0%)
0with a fibre list
0unresolved
Products read· 0% of catalogue
Excluded items·

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