Stock Fabric vs Custom-Knitted Fabric: The Decision Hiding Inside Every Quote
When two suppliers quote the “same” legging 30% apart, buyers assume someone is lying. Often both are honest — they’re quoting different fabric routes. One is dyeing stock greige (fabric already knitted, waiting undyed in a warehouse) to your color. The other is knitting fabric to your specification from yarn. Same garment on the outside; different economics, timelines and control underneath. You should know which one your quote contains — and which one your product actually needs.
The two routes, honestly compared
| Stock greige, dyed to order | Custom-knitted to spec | |
|---|---|---|
| What’s fixed | Composition, weight, knit structure (choose from what exists) | Nothing — you specify fiber, yarn, weight, structure |
| What’s yours | The color (and the garment) | The fabric itself |
| Fabric MOQ driver | Dye lot minimums | Knitting run + dye lot |
| Speed | Fastest — greige exists, only dyeing stands between you and cutting | Adds knitting queue and often yarn sourcing |
| Consistency risk | Between dye lots (covered here) | Between everything — until the spec locks, then excellent |
| Cost | Lower entry | Higher entry, control premium |
| Exclusivity | None — others can dye the same greige | Real — the spec is yours |
When stock greige is the smart answer
For most first collections and many mature basics, stock greige is not a compromise — it’s the reason MOQ 100 programs can exist at all. The knitting risk is already absorbed, quality history on the fabric is known, and your differentiation lives where customers actually feel it: fit, color story, logo, packaging. Our stock-style programs run on proven greige bases for exactly this reason — from 100 sets, mixed colors and sizes, with custom Pantone dyeing available at dye-lot quantities (300–500 pcs per color). For other ways to make a stock style stand out, see seven ways to make a style yours, ranked by minimum order.
The honest limitation: you’re choosing from fabrics that exist. If your brand’s whole thesis is a hand feel nobody else has, stock greige can get you close — but “close” is the operative word.
When custom knitting earns its cost
Custom knitting is the route when the fabric is the product: a specific weight nobody stocks, a rib structure that defines your look, a compression profile with numbers behind it, or an exclusivity requirement written into your brand story. You gain a spec that competitors can’t dye their way into — and you take on knitting minimums, longer first-run lead times, and the responsibility of locking a spec worth repeating.
Two practical warnings from the factory floor:
- Lock the spec before you love the sample. A custom fabric approved on hand feel alone, without recorded weight, stretch, recovery and shrinkage numbers, is a reorder dispute waiting to happen.
- Custom fabric changes your reorder math. Reorders wait on knitting runs, not just dye lots — plan inventory accordingly, especially around peak-season windows.
The hybrid most good lines actually run
Hero styles on custom-knitted signature fabric; volume basics on proven stock greige dyed to the same color story. One brand language, two fabric routes, each doing what it’s economically good at. When we quote your line, we’ll tell you which route each style is on — and if a quote you got elsewhere seems too good, asking “stock greige or custom knit?” is the fastest way to find out what it’s really made of.
Reading a fabric swatch — and what to ask for
A swatch is a cut piece of the real fabric, usually mounted on a card with the mill’s article number, composition, weight, structure and finish. There is no standard size: a hanger card can be a few centimeters square, a development piece can be a quarter-meter or more. Ask which one you are getting, because the small mounted cards are for identification, not for testing.
| What you are sent | What it is for |
|---|---|
| Swatch card / header card | Identifying an article — composition, weight, finish, article number |
| Swatch book or hanger set | Browsing a mill’s or a factory’s current range in one place |
| Development swatch (a loose piece) | Stretching, holding to the light, washing — the one that answers questions |
| Cutting from the production roll | Confirming the lot you are actually buying, before bulk is cut |
For activewear, ask for a piece you can stretch over your hand: fabric only goes sheer under tension, and recovery only shows when you pull and release. Then record the article number against the route it came from — stock greige or custom knit — because that one field decides your color minimums and your reorder lead time later. A swatch book you build yourself is just that record, kept in order: swatch, article number, supplier, date, route.
FAQ
How do I know which route my current supplier uses? Ask for the greige source and whether the fabric spec sheet is theirs or the mill’s stock article number. Hesitation is your answer.
Can stock greige be certified (OEKO-TEX, recycled)? Yes — stock programs run on certified bases too; documentation sits at mill level and is shared per project.
What’s the real MOQ difference? Stock route: garment program minimums (from 100 sets) with dye lots at 300–500/color for custom shades. Custom knit: add the knitting run — quoted per spec, honestly, before you commit.
Can I move from stock to custom later? That’s the healthy path: prove the style on stock greige, then invest the custom spec into a proven winner instead of a guess.
How do I get fabric swatches from an activewear factory, and are they chargeable? Send the hand-feel target, composition and weight you are chasing — or a reference garment — and ask for swatches of the nearest stock articles rather than a whole book. Whether a set is chargeable depends on its size and where it ships, so confirm that when you request it. We send swatches from the greige bases our stock programmes already run on, with the article details attached.
What is the difference between a swatch, a lab dip and a bulk fabric sample? A swatch shows you the base fabric — structure, weight, hand feel — in whatever shade the mill happens to hold. A lab dip is a small dyed piece submitted for color approval against your Pantone reference, before any bulk is dyed. A bulk sample is cut from the roll that will become your garments. Approve all three: a swatch approval is not a color approval.
Do I buy activewear fabric myself or through the factory? Most brands buy it inside the garment order, and that is usually the lower-risk route: the factory carries the dye-lot minimum instead of you. Buy yardage yourself and you take on the mill’s minimums, the inspection and the risk of a lot that cuts badly. On our side, stock styles with your logo start from 100 sets in mixed colors and sizes; a custom Pantone shade is dyed at 300–500 pieces per style per color.
What should a sourcing manager look for when specifying spandex for activewear? Specify behavior, not just a percentage. Name the elastane type and whether it is bare or covered yarn, then record measured stretch and growth, recovery after washing, and the heat-setting the fabric has had — those are what a mill can repeat on a reorder. Ask for the same figures on the bulk lot, not only on the development swatch. Background on the fiber: what is spandex, Lycra and elastane.
For the fibre terminology used in stretch fabrics, see our spandex, Lycra and elastane explainer.
Send your reference fabric or hand-feel target — we’ll tell you whether it’s a stock match, a dye job away, or a genuine custom knit, with both routes quoted. Reply within 24 hours on weekdays.
