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Page last updated: October 27, 2026

Buyer guide · Materials

Yarn options for custom socks, fibre by fibre

Your yarn decides how the sock stretches, how it washes, and how the cuff behaves after twenty cycles. Five families cover almost every bulk order we quote.

This page sets out what each family does, where buyers get caught, and which questions settle the choice before sampling starts.

On this page

The order of decisions

Why the yarn decision comes before the design

Fibre and count are decided together, and both are settled before artwork. A pattern drawn for a light cotton reads differently once the same design is knitted in a heavier blend.

Photograph of the yarn warehouse on our floor: racking of colored yarn cones that feed the knitting machines

Yarn is held by lot. Once a lot is set aside for your order, the second shipment is matched to it.

Fibre sets stretch, warmth and how the sock behaves in the wash. That is the first of the yarn options for custom socks, and it is fixed before a single stitch count is written down.

A heavier count knits denser and reads thicker on the shelf. A lighter count knits faster and reads thinner. Neither is better until you name the end use and the market.

Two usual traps

Where buyers get caught on the blend

Elastane is the common one. A buyer asks for stretch, accepts the word, and later finds the cuff relaxing in wear because nobody wrote a percentage down.

Ask for the content as numbers. Our listed ballet sock, for example, gives 5% spandex and 80% cotton, and the sample is knitted to that pairing.

The second trap is cotton quality, combed against carded. Both knit a soft sock, and carded pills sooner. Name which one you are buying, because the two sit at different points.

Reference

Five fibre families, and what each one does

Fibre behaviour on a sock machine, and the point to confirm before you approve a sample.

FibreWhat it givesWhat to watchWhere we list itSuits this use
Combed cottonSoft hand, even dye, breathes wellCuff relaxes unless blendedBallet crew, casual crewBallet, dance, casual and business crews, and any studio sock that has to feel soft before it feels technical
PolyesterHolds shape, dries fast, prints cleanlyCan pill where the heel rubsThin studio crew, kids sportsKids sports and thin studio crews, where the sock has to dry between classes
Nylon (polyamide)Strength and a smooth surfaceFeels cooler against the footPilates grip crewPilates and yoga grip crews, where the sole has to hold a print or a dot layout
Spandex (elastane)Returns the cuff and the archA high share is hard to pull onListed at 5% in the ballet sockAny cuff that has to return after stretching, and the arch of a training sock
Merino woolWarm when damp, low odourNeeds a gentler wash cycleNamed on this site, no style runs in it todayWinter, outdoor and long-wear ranges — ask first, because no current style here runs in it

The last row is honest rather than convenient. Merino is named on this site as a yarn we hold, and no current style is knitted in it. If you want one made, ask the desk for a quotation on that construction.

Which family to start from

One line per family, and where each one fits

Ballet and casual crews start on combed cotton; thin studio crews and kids sports start on polyester; a Pilates grip crew starts on nylon; the cuff that has to return needs a spandex share, listed at 5% in the ballet sock. Merino is the warm option and it adds a sample round, because no current style here runs in it.

The route is the same whichever family you pick, and it is fixed by what the floor already knits: a fibre already running here needs no extra sample round, while a fibre no current style runs in adds one, because the construction has to be knitted and signed before bulk. Nothing in that table is a better version of the row above it — a fibre is right for an end use or it is not, and the end use is the line the brief has to name first. Send the sock you have in mind and the fibre you are weighing up, and the desk answers with what that fibre does to the cuff, the wash and the sole, in writing, against the sample you would sign.

The table above is set to print on one sheet: use your browser’s print command and the navigation and the buttons drop out, which leaves the five families, the notes beside them and the desk contact in the footer — the copy to take to a brand or product meeting.

Ask which fibre fits your end use →

FAQ

Questions buyers ask

Which yarn should a first order use?

Start from the three the styles already list: cotton, nylon and polyester. A first order on a fibre we already knit needs no extra sample round. A new fibre adds one, and that round runs 3–5 days after the brief and artwork are confirmed.

Do you dye yarn to a Pantone reference?

Yes, with the reference sent in the brief. Colour is matched on the sample rather than on a screen, because a monitor and a dyed cone never agree. The sample you sign is what bulk is checked against.

Where does yarn weight get written down?

On the specification sheet, in grams per pair. Weigh the signed sample, then weigh pairs pulled from the bulk carton. Both figures are recorded against your order number, so a weight claim has a document behind it.

What if the weight on my scale misses the sample?

Write to the desk with the order number and the figure off your scale. The sample on file is re-weighed, and the deviation is answered in writing before bulk continues. If the sample itself is off, a new round is run.

The styles this guide applies to

Every style on this site is quoted on the terms this page sets out. Both cards open the style’s own page — photographs, specification sheet and terms, without an email first.

Who wrote this guide

This guide was written by Michelle Zhang, Export sales manager at Sock Wholesalers. She sits on the export desk that answers buyer briefs, quotes orders and books freight, which is where the questions in this guide come from.

Full role, direct line and the other guides by the same author: Michelle Zhang, author page.

How this guide was produced: first drafts are prepared with AI assistance, then every claim is checked and the wording finalised by the export desk before publication.

The short version

Four answers settle the yarn

Fibre by name, percentage in numbers, weight in grams per pair, and the end use. Those four answers cost one email and save a sample round.

Send the fibre and the quantity band. The desk replies within one working day with the construction route and the sample schedule.

Related on this site: sock materials.