Organic Cotton Socks — Adult
Organic Cotton Socks — Adult
No dye. No bleach. No biocides. Nothing that shouldn’t touch your skin.
Ankle / Greige organic cotton. Undyed means the colour is the cotton’s own natural off-white — slight variation between pairs and batches is the fibre, not a flaw.
A non-toxic undyed organic cotton sock, processed in its raw greige state and finished with nothing. 93–95% organic cotton, held by a small amount of bio-based elastane (Hyosung creora Bio-Based), softened with a natural citric-acid wash and nothing else. No dye. No bleach. No brighteners. No resin. No biocide. What touches your skin is cotton in the state it was grown — and a composition list you can check, line by line.
Present
- Organic cotton — 93–95%, greige (raw)
- Bio-elastane — 5–7%, bio-based, fully encased so it never meets your skin
- Citric-acid softening — plant-derived, for pH balance and hand-feel
Absent
- Synthetic dyes — zero azo-dyes, zero heavy-metal fixatives
- Chlorine bleach — unbleached, the natural off-white of raw cotton
- Optical brighteners — fabric stays UV-neutral
- Formaldehyde finishes — no wrinkle or shape resins
- Silicone softeners — no synthetic hand-feel
- Antimicrobial biocides — no silver, no triclosan, no anti-odour chemistry
Nothing added, nothing to react to
Most sock irritation isn’t the cotton — it’s what was done to the cotton. Remove the dyes, finishes, and biocides and you remove the things skin reacts to. What’s left is fibre.
Built for the sweatiest skin you own
Your feet carry around 250,000 sweat glands between them — the densest on the body — and produce close to half a pint of moisture a day. STROMA gives that warm, damp environment nothing to release: no dye to run, no finish to break down, no biocide to leach.
Structure, not chemistry
A 3×1 ribbed leg holds the sock up without elastic gripping. A Y-Gore heel pocket sits to the anatomy of the foot. A hand-linked seamless toe means no ridge across your toes. The performance is knitted in, not treated on.
Checkable, not claimable
We don’t ask you to trust us. The composition is published in full: 93–95% organic cotton and 5–7% bio-based elastane. Read it, check it, then decide.
Construction & spec
- Composition — 93–95% organic cotton / 5–7% bio-based elastane
- Fit / length — Ankle
Even the logo is knitted in by changing knit density — there is no ink anywhere on the sock, including the size marker inside the cuff.
Sizing — adult, unisex
| Size | EU | Foot length |
|---|---|---|
| Small | 35–38 | 22–24.5 cm |
| Medium | 39–42 | 24.5–27 cm |
| Large | 43–46 | 27–29.5 cm |
| X-Large | 47–50 | 30–32.5 cm |
Sized to the foot, not to a stretch. The ribbed leg holds without squeezing.
Packaging
Shipped in a 100% unbleached, recycled kraft belly band, closed with a die-cut paper tab or plant-based adhesive. Zero plastic tape, zero polybags, zero shrink-wrap.
Asked, answered, checkable.
If there’s no dye, what colour is it?
The natural, undyed off-white of raw organic cotton. Slight variation between batches is the fibre, not a flaw. We never correct it with bleach or brighteners.
There’s elastane in it — how is that “non-toxic”?
The stretch is 5–7% bio-elastane, verified bio-based. It’s fully encased inside the knit as an internal feed, so it gives the sock its hold without ever touching your skin. We disclose it because we disclose everything.
No antimicrobial treatment — won’t they smell?
Odour comes from bacteria feeding on sweat, and biocide finishes mask it rather than fix it — while sitting in the fabric against your skin. Untreated organic cotton breathes and releases moisture instead of trapping it. Wash them normally; air them between wears.
How should I wash them?
Cold or warm machine wash, mild detergent, no fabric softener — softener coats fibres in exactly the kind of residue we left out. Air-dry or low heat.
Will they shrink or lose shape?
The fabric is pre-softened and tumbled, so movement is minimal. The 3×1 ribbed leg and Y-Gore heel are structural — the shape is knitted in, not held by a finish.