Netmark

Material Trace

Four stages.
No adjectives.

Pick any of the 42 socks and read its material backwards: what category it was recovered from, how it was turned back into fibre, what share of the yarn it makes up, and what the finished sock is made of. Where a supplier has not told us something, the stage says so instead of guessing.

Stage 0101

Recovered input

Shredded recovered feedstock in a shallow specimen tray, photographed flat.
84% polyamide
Reclaimed fishing gear
Stage 0202

Back to fibre

The processing stage: regranulate pellets, or reopened fibre, photographed flat.
84% polyamide
Chemical recycling
Stage 0303

Spun yarn

Macro of the spun yarn, twist and individual fibres visible.
polyamide (recycled)
84% of yarn weight
Recycled total
84% of yarn weight
Stage 0404

Finished sock

Trace Max 84, photographed flat.
polyamide
84%
cotton
13%
elastane
3%
Not recycled
13% cotton, 3% elastane
  • Basis 01Recycled content is measured by weight of the yarn, not of the finished sock.
  • Basis 02The remaining share is listed in full on every product page.
  • Basis 03We do not claim this sock is sustainable. We tell you what it is made of.
  • Basis 04Source category is as far as we can verify. We do not name specific locations.

What the number is, and what it is not

Every percentage on this site is a share of yarn weight. It is the weight of recycled fibre in the yarn used to knit the sock, divided by the total weight of that yarn. It is not a share of the finished sock, and it is not a share of the packaging, the sewing thread or the elastic in the cuff.

We use that basis because it is the one our yarn suppliers can actually declare. A number based on the finished sock would look larger or smaller depending on how much thread went into the toe seam, and we would not be able to show you where it came from.

Recycled fibre is declared to us per batch of yarn. Where two recycled fibres are blended into the same sock, each is listed separately with its own source category and its own processing route, because they do not come from the same stream.

Where a number stops

We state a source category — reclaimed fishing gear, textile waste, reprocessed wool. We do not state a sea area, a port, a collection site or a mill, because we cannot verify any of those and would only be repeating a supply chain story back to you.

No product on this site carries third-party certification. Every product page says so in plain words rather than leaving the field blank.

A balance pan holding a coil of bare yarn, with a finished sock set outside the pan.
Weighed as yarn, before knitting. The finished sock sits outside the measurement.
A block divided into a smaller orange field and a larger solid grey-green field of equal visual weight.
The share that is not recycled, broken into its actual fibres. Drawn at full strength, never dimmed.

Filter by band

Every sock, sorted into four bands

The four columns below use identical type, spacing, borders and colour. A sock at 12% is presented exactly like a sock at 84%, because ranking them visually would be a claim about which one is better, and we have no basis for that claim.

The four fixed statements

These four lines appear on every trace, for every sock, whatever the number turns out to be.

  1. Basis 01Recycled content is measured by weight of the yarn, not of the finished sock.
  2. Basis 02The remaining share is listed in full on every product page.
  3. Basis 03We do not claim this sock is sustainable. We tell you what it is made of.
  4. Basis 04Source category is as far as we can verify. We do not name specific locations.