Harvest & Mill
Harvest & Mill fibre report from Hold The Throne: the real plant fibre percentage and natural score, tested by label to the Throne Standard.
By the numbers
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Cotton
Linen
Hemp
Wool
Silk
Cashmere
ElastanePolyesterNylonAcrylic
ViscoseModalLyocellBambooElastane🔍 Mighty Good Basics is 1 of 1,000+ brands we scan fibre by fibre. See Mighty Good Basics’s full 11-style breakdown
Every sku, scored
No headline breakdown published for this brand yet.
| # | Style | Composition | Class |
|---|---|---|---|
| 01 | GRANNY KNICKER - NEW | 95% certified organic and Fairtrade cotton and 5% elastane | Plant |
| 02 | BIKINI BRIEF | 95% organic cotton underwear and 5% elastane | Plant |
| 03 | MID LENGTH TANK | 95% certified Fairtrade organic cotton and 5% elastane | Plant |
All 11 products fibre by fibre, with prices, links and the sourcing ledger. Factory & licence numbers you can verify yourself.
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| # | Style | Composition | Class |
|---|---|---|---|
| 01 | GRANNY KNICKER - NEW | 95% certified organic and Fairtrade cotton and 5% elastane | Plant |
| 02 | BIKINI BRIEF | 95% organic cotton underwear and 5% elastane | Plant |
| 03 | MID LENGTH TANK | 95% certified Fairtrade organic cotton and 5% elastane | Plant |
| 04 | TRUNKS | 95% certified Fairtrade organic cotton and 5% elastane | Plant |
| 05 | BOXER BRIEFS | 95% certified Fairtrade organic cotton and 5% elastane | Plant |
| 06 | BRIEFS | 95% certified organic and Fairtrade cotton and 5% elastane | Plant |
| 07 | TRUNKS | 95% certified organic and Fairtrade cotton and 5% elastane | Plant |
| 08 | BOXER BRIEFS | 95% certified organic and Fairtrade cotton and 5% elastane | Plant |
| 09 | TANK TOP | 95% certified organic and Fairtrade cotton and 5% elastane | Plant |
| 10 | SPAGHETTI TOP | 95% certified organic and Fairtrade cotton and 5% elastane | Plant |
| 11 | G STRING | 95% certified organic and Fairtrade cotton and 5% elastane | Plant |
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What the label won’t tell you
0 of 0 styles scanned: zero PFAS, zero formaldehyde.
“Eco” and “green” have no legal meaning, and thousands of unverified claims flood the market. We scanned 0 styles from the store’s own product feed and publish a score only at full coverage. We read certificates, not adjectives.
Most “cotton” underwear hides elastane or spandex in the trims. We read the stated fibres on 0 of 0 styles, thread by thread: 95% plant, 5% synthetic.
Latex and rubber waistbands are a top trigger for contact eczema. Elastic check across the catalogue: Elastane. Spandex, flagged red in the Skin-Safe section above.
Traceability on record: see ledger. We publish the full sourcing chain and the honest red flags, including where sources conflict.
Synthetic underwear sheds plastic fibres onto your skin and into the water with every single wash. Mighty Good Basics is 5% 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
plant fibre across all 11 styles, read style by style from the live product feed. No sampling, no marketing page.
On record. Cotton certification not documented. Flagged in the ledger.
Not named publicly. Carries Fairtrade / GOTS-level certification with traceability on record.
Low-impact finishes. Chemical flags and dye chemistry are recorded for every brand we scan.
On record. Packaging claims not documented. See the full record.
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
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Real figures from the Throne Standard scan: Mighty Good Basics 95% plant / 11 styles · Pact 60.5% / 217 · MATE the Label 58.4% / 106 · Patagonia 29.2% / 0 · Gymshark 14.7% / 0 · Harvest & Mill 97% / 135 · Terra Thread 100% / 44 · Everlane 64.9% / 733 · Kotn 86.9% / 1032 · Boody 0% / 156 · Kent 100% / 45.
A peek at the leaderboard
| # | Brand ↕ | Plant fibre ↕ | Fibre score ↕ | SKUs ↕ | GOTS ↕ |
|---|
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