Nattynooks
Flat lay of a clean black cotton no show sock with plush terry sole, cushioned heel, and seamless toe.
Side profile of a foot wearing a non-toxic low cut sock made with 97 percent cotton that fits invisibly below the shoe line.
Woman sitting with leg crossed wearing athletic baby blue shorts and non-toxic black no show socks with 100 percent cotton skin contact.
Man wearing navy blue trousers putting on a clean, Oeko-Tex certified black cotton no show sock free of manufacturing residue.
Pair of clean black cotton no show socks hanging from a wooden clothespin against a weathered fence.

Cotton Ankle Sock

100% Premium Cotton Contact
100% Certified Non-Toxic
1,000+ TOXINS TESTED & CLEARED
Made in Europe
RARE, SPECIALIZED CORESPUN YARN

The 3% synthetic is fully wrapped in certified clean cotton, so it never touches your skin.

Category
Size — women's shoe size
Color
+
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The Material

Exactly what's in your sock, down to the percent

Nothing hidden. Every material disclosed.

  • 97% cotton
    The main material of the sock. Soft, breathable, and natural.
  • 2% elastane
    Adds just enough stretch and recovery to gently hug your foot and stay comfortably in place.
  • 1% polyamide
    Used in the top band for added structure and a medium hold around the ankle.
  • Specialized construction
    The small synthetic portion (2% elastane, 1% polyamide) is uniquely engineered and fully enclosed in certified clean cotton, so only cotton touches your skin.
  • Plush terry cushioning
    Soft cushioning underfoot with a medium overall thickness.
The Yarn Difference

The rare yarn behind 100% cotton contact

The stretch fiber sits in the center of the yarn. Certified clean cotton is spun completely around it, giving the sock the stretch it needs while keeping the synthetic fiber off your skin.

Three layer diagram of corespun sock construction with a 100 percent clean cotton skin contact layer wrapping core elastane.

Stretch on the inside. Cotton against your skin.

The Proof

Certified to the same class as baby clothing

(100% Oeko-Tex Standard 100)

Oeko-Tex Standard 100 Seal
Stripped and cleared from every fiber:

(Yes, even the 2% elastane + 1% polyamide.)

Glyphosate
Phthalates
Pesticides
Azo Dyes
BPA
Formaldehyde
Microplastics
And more
  • One of the most rigorous textile certifications in the world
  • Every chemical of concern checked and cleared
  • Product Class I, the strictest class
  • Tests what's in the finished fabric, not just how the material was grown

Companies stop at a certified label.
We give you the certificate for every yarn.

(Click any below to view)

The cotton yarn

The corespun yarn

The polyamide yarn

The Comparison

How they stack up

What standard sock labels leave out.

Standard socks
Nattynooks
Daily skin contact
Glyphosate, petroleum-based plastics, and more
100% soft cotton. Nothing else.
Stretch fiber
Mixed directly into the fabric
Unique corespun yarn wraps it in cotton
Ingredient transparency
Buried
Fully disclosed. No fine print.
Manufacturing
Mass-produced in low-cost overseas factories
Made in Europe
Odor
Synthetics trap it. Making it worse.
Cotton breathes. Odor doesn't build.
Heat and moisture
Sealed in by synthetics
Released. Cotton doesn't trap them.
Sizing
One or two generic sizes. Loose on most feet.
Sized to your actual foot.
THE CUMULATIVE EFFECT

Less working against your body adds up

You can do a lot right and still have small things working against you in the background. Clothing is easy to overlook because there's no obvious moment when it starts to matter.

Your feet have up to 500,000 pores between them. Whatever your socks are made of stays pressed against that skin for most of the day.

Switching what touches your skin to certified clean cotton takes one unnecessary source of plastic fibers and chemical residue out of the equation.

Give your body less to work around.

Over time, that's linked to more energy, sharper focus and a steadier mood.

The research behind these claims is published and available to read. We collected the sources in one place so you can see the evidence for yourself.
See all 37 findings

The hard part was finding a healthier sock worth wearing. You just did.

Switch to Nattynooks once and never think about socks again.

FAQs

Questions, answered