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Frank And Oak 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
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By the numbers

Plant fibre
Verified
95%
PLANT OTHER
0% animal · 5% synthetic
Catalogue
scanned
No sampling
8383SCANNEDTOTAL
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
95%100%100%97%87.6%69.7%62%58.9%29.2%26.5%Frank AndOakTerraThreadKentHarvest &MillKotnEverlanePactMATE theLabelPatagoniaGymshark
Frank And Oak composition
83 styles
95% PLANT
Plant95%
Animal0%
Synthetic0%
Semi-synth5%
Instant fibre checkfree · no login

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

Cotton

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

Every sku, scored

Every product read fibre by fibre

83 styles95% plantNo sampling83 read
Plant 95%Animal 0%Synthetic 0%Semi 5%
#StyleCompositionClass
01ESSENTIAL RELAXED TEE100% cottonPlant
02LINEN SHIRT - LONG SLEEVE100% linenPlant
03LINEN SHIRT - LONG SLEEVE100% linenPlant
04
05
06
07
08
09
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#StyleCompositionClass
01ESSENTIAL RELAXED TEE100% cottonPlant
02LINEN SHIRT - LONG SLEEVE100% linenPlant
03LINEN SHIRT - LONG SLEEVE100% linenPlant
04LINEN SHIRT - SHORT SLEEVE100% LinenPlant
05LINEN SHIRT - SHORT SLEEVE100% LinenPlant
06LINEN SHIRT - SHORT SLEEVE100% LinenPlant
07RELAXED LINEN TROUSER55% linen and 45% cottonPlant
08RELAXED LINEN TROUSER55% linen and 45% cottonPlant
09LYOCELL RESORT SHIRT100% LyocellSemi-synthetic
10JASPER SHIRT - SHORT SLEEVE100% cottonPlant
11TENCELu2122 LYOCELL RESORT SHIRT100% TENCELSemi-synthetic
12HEMP HERRINGBONE OVERSHIRT55% Hemp, 45% Organic cottonPlant
13HEMP HERRINGBONE SHORT55% Hemp, 45% Organic cottonPlant
14WORKSHOP SHORT100% cottonPlant
15ESSENTIAL CHINO SHORT98% cotton, 2% SpandexPlant
16ESSENTIAL CHINO SHORT98% cotton, 2% SpandexPlant
17ESSENTIAL CHINO SHORT98% cotton, 2% SpandexPlant
18ESSENTIAL SLIM CHINO PANT98% cotton, 2% SpandexPlant
19ESSENTIAL SLIM CHINO PANT98% cotton, 2% SpandexPlant
20JASPER SHIRT u2013 LONG SLEEVE100% cottonPlant
21ENGINEERED STRIPE JOHNNY COLLAR POLO100% cottonPlant
22ENGINEERED STRIPE JOHNNY COLLAR POLO100% cottonPlant
23DROP-NEEDLE KNIT SHIRT100% cottonPlant
24DROP-NEEDLE KNIT SHIRT100% cottonPlant
25PIQUE HENLEY100% PimaPlant
26PIQUE HENLEY100% PimaPlant
27RELAXED HEMP TEE70% cotton, 30% HempPlant
28RELAXED HEMP TEE70% cotton, 30% HempPlant
29RELAXED HEMP TEE70% cotton, 30% HempPlant
30ESSENTIAL RIBBED TANK100% cottonPlant
31ESSENTIAL RIBBED TANK100% cottonPlant
32BOXY TEXTURED KNIT TEE100% cottonPlant
33BOXY TEXTURED KNIT TEE100% cottonPlant
34ESSENTIAL SLIM TEE100% cottonPlant
35ESSENTIAL SLIM TEE100% cottonPlant
36ESSENTIAL SLIM TEE100% cottonPlant
37ESSENTIAL SLIM TEE100% cottonPlant
38ESSENTIAL SLIM TEE100% cottonPlant
39ESSENTIAL SLIM TEE100% cottonPlant
40ESSENTIAL SLIM TEE100% cottonPlant
41PRINTED TENCELu2122 LYOCELL RESORT SHIRT100 % TENCELSemi-synthetic
42TENCELu2122 LYOCELL RESORT SHIRT100% TENCELSemi-synthetic
43PRINTED CHAMBRAY RESORT SHIRT75% Organic cotton 25% LinenPlant
44LINEN CHAMBRAY SHIRT75% Organic cotton 25% LinenPlant
45LINEN CHAMBRAY SHIRT75% Organic cotton 25% LinenPlant
46DARK INDIGO DENIM JACKET100% cottonPlant
47DARK INDIGO STRAIGHT LEG DENIM100% cottonPlant
48RUGBY POLO100% cottonPlant
49RUGBY POLO100% cottonPlant
50ESSENTIAL CREW SWEATSHIRT100% cottonPlant
51ESSENTIAL CREW SWEATSHIRT100% cottonPlant
52RELAXED FATIGUE PANT100% cottonPlant
53RELAXED FATIGUE PANT100% cottonPlant
54ESSENTIAL STRAIGHT PANT100% cottonPlant
55ESSENTIAL SLIM CHINO PANT98% cotton, 2% SpandexPlant
56ESSENTIAL SLIM CHINO PANT98% cotton, 2% SpandexPlant
57MAC COAT100% cottonPlant
58WORKWEAR OVERSHIRT100% cottonPlant
59WORKWEAR OVERSHIRT100% cottonPlant
60ESSENTIAL QUARTER ZIP SWEATSHIRT100% cottonPlant
61ESSENTIAL QUARTER ZIP SWEATSHIRT100% cottonPlant
62PATTERN KNIT SHIRT100% Organic cottonPlant
63MILANO KNIT POLO100% Organic cottonPlant
64MILANO KNIT POLO100% Organic cottonPlant
65JOHNNY COLLAR WAFFLE KNIT100% cottonPlant
66JOHNNY COLLAR WAFFLE KNIT100% cottonPlant
67ESSENTIAL PIQUu00c9 POLO100% PimaPlant
68ESSENTIAL PIQUu00c9 POLO100% PimaPlant
69JASPER SHIRT - LONG SLEEVE100% cottonPlant
70JASPER SHIRT - LONG SLEEVE100% cottonPlant
71JASPER SHIRT - LONG SLEEVE100% cottonPlant
72JASPER SHIRT - LONG SLEEVE100% cottonPlant
73JASPER SHIRT - LONG SLEEVE100% cottonPlant
74JASPER SHIRT - SHORT SLEEVE100% cottonPlant
75JASPER SHIRT - SHORT SLEEVE100% cottonPlant
76JASPER SHIRT - SHORT SLEEVE100% cottonPlant
77JASPER SHIRT - SHORT SLEEVE100% cottonPlant
78ESSENTIAL OVERSIZE TEE100% cottonPlant
79ESSENTIAL OVERSIZE TEE100% cottonPlant
80ESSENTIAL OVERSIZE TEE100% cottonPlant
81ESSENTIAL OVERSIZE TEE100% cottonPlant
82ESSENTIAL OVERSIZE TEE100% cottonPlant
83ESSENTIAL OVERSIZE TEE100% cottonPlant

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

✓ Frank And Oak passes every one

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

  • ✓ 72 of 83 styles with a stated composition are purely plant fibre
  • ✗ 7 styles contain nylon, lycra or ECONYL. Flagged red when ticked

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The brand
Brand

Who’s behind it

Sourcing

  • 95.2% plant fibre

Getting It

Contact

  • Website
  • Ethics
  • Instagram
  • Email

Where this brand isn't perfect

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What the label won’t tell you

The questions sensitive skin actually asks, answered

✓ 83 of 83 styles scanned, no sampling ✓ 95% plant · 5% synthetic ✓ read from the live product feed, not the marketing page
Are there hidden chemicals against my skin?

83 of 83 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 83 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 83 of 83 styles, thread by thread: 95% plant, 5% synthetic.

5%
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: Elastane. Spandex, flagged red in the Skin-Safe section above.

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. Frank And Oak 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

What we verified, style by style

Frank And Oak · read from the live product feed
83/83
styles scanned in full, no sampling, no marketing page
✓ Cleared
Plant fibre vs similar brands
Frank And Oak95%
Vietopia100%
SÜK Workwear100%
SoftShirts100%
The Turkish Towel Company99%
Throne Standard scan · whole catalogues, never a sample
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Checked against the source
95% plant fibre✓ 0% synthetic · plastic-free✓ 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: 95% plant · 5% 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
95%

plant fibre across all 83 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.

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What you'd be wearing otherwise

Frank And Oak

FRANK AND OAK THIS BRAND

95% plant fibre5% synthetic / semino GOTS certificationfibre score 0 / 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: Frank And Oak 95% 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 0 3 / 5 0 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 Frank And Oak sustainable and ethical?+
On the Throne Standard, Frank And Oak reads 95.2% pure plant fibre across 83 styles from its own catalogue, a 4/5. Good On You rates Frank And Oak It's a start.
What is Frank And Oak made of?+
Across the 83 styles read, 95.2% are 100% pure plant fibre, 0.0% synthetic and 0.0% blended.
Where is Frank And Oak made?+
Frank And Oak is based in Canada.
How does Frank And Oak rate on Good On You?+
Good On You rates Frank And Oak It's a start: planet Good, people Not good enough, animals Good.
How many Frank And Oak products were scanned?+
83 styles were read in full from Frank And Oak's live catalogue, 100.0% carrying a stated composition.

Independent ratings

How Good On You rates Frank And Oak

DirectoryMarkWhat it measuresChecked
Good On YouIt's a startPublished policy and supply-chain disclosure across planet, people and animalsApril 2022
The Throne Scan4/5Mostly naturalFrank And Oak has not been scanned yet.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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What it costs per wear, who actually makes it, and how much the fabric sheds.

£0.00 per wear

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