How to Brief an Apparel Manufacturer: A Buyer's Technical Pack Guide
Most first orders go wrong before production starts — not on the factory floor, but in the enquiry email. This guide sets out exactly what a garment manufacturer needs from you to quote accurately, and what to check before you approve a counter-sample.
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Why an incomplete brief costs you money
A brief that omits fabric weight or decoration method does not stall the order — it moves it forward on assumptions. The factory estimates, you accept the estimate, and the error only surfaces at the counter-sample stage, or worse, in bulk. By then the fabric is ordered, the pattern is graded, and re-cutting is your cost.
In full-package apparel production, cost is driven by four variables: fabric consumption per garment, sewing operations (measured in standard allowed minutes), decoration steps, and packaging. A brief that leaves any of those ambiguous forces the factory to price a range, and the range is always quoted at its upper end to protect the supplier.
The rule of thumb: every hour spent tightening a brief before enquiry removes roughly a week of back-and-forth later. Factories quote faster and sharper when the input is unambiguous, because costing becomes arithmetic instead of guesswork.
The five data blocks every brief must contain
Whatever the garment category, these five blocks cover more than 90% of what a costing team needs. Missing one is the single most common cause of revised quotations.
1. Style and quantity
- Style reference — your own reference code plus one clear image per colourway
- Total quantity and quantity per colour, per size
- Size range and ratio (for example, 200 units split S–XL at a stated ratio)
- Any known reorder intention — it changes fabric purchasing decisions
2. Fabric and material
- Composition — exact percentages (for example, 95% cotton / 5% elastane)
- Weight — GSM is the standard unit; give a tolerance if you have one
- Finish or handfeel — brushed, peach, washed, bio-polished, coated
- Trims — zips, buttons, elastics, interlining, thread colour references
3. Construction and fit
- Fit block — slim, regular, oversized, or a sample you send
- Seam types and stitch density where they affect durability
- Measurement table — point of measure (POM) list with tolerances
- Lining and interlining specification for structured garments
4. Decoration and branding
- Method — screen print, embroidery, heat transfer, sublimation, patch
- Placement — with dimensions or a markup on the flat sketch
- Colour references — Pantone TCX or TC codes instead of words
- Label set — main label, care label, size label, hangtag
5. Packaging and delivery
- Polybag or box, and whether barcodes or stickers are required
- Carton specification and units per carton
- Destination port and required ship date
- Delivery terms you are working to
| Block | Missing this causes | Typical cost of the error |
|---|---|---|
| Style and quantity | Fabric ordered at wrong scale; no bulk discount tier | 5–15% higher unit price |
| Fabric and material | Substituted quality; re-sample required | One full sampling round lost |
| Construction and fit | Pattern rework and size-grade redo | 3–10 days schedule slip |
| Decoration and branding | Wrong print method or label set | Rework or repurchase of trims |
| Packaging and delivery | Carton or barcode mismatch at destination | Re-packing at warehouse rates |
What a usable tech pack actually looks like
A tech pack is the brief turned into a document the sample room can build from without asking questions. It does not need to be long; it needs to be unambiguous. A workable pack contains:
- Cover page — style number, season, buyer, date, revision number
- Flat sketches — front and back, with construction callouts
- Bill of materials (BOM) — every component with placement and supplier reference
- Measurement chart — all sizes across all POMs, with tolerance column
- Colour and artwork sheets — Pantone references and print files at production resolution
- Label and packaging page — artwork for every label and the carton marking
- Revision log — what changed, when, and who approved it
Revision control matters more than completeness. A pack with three clearly logged revisions is safer than a pristine pack with no version history — because once sampling starts, everyone needs to know which drawing is current. State the revision number in the subject line of every email referring to the style.
Reading and comparing quotations
Quotations are rarely comparable line by line, because suppliers bundle differently. To compare properly, request the same breakdown structure from everyone and normalise it before you decide.
| Cost element | What to ask for | Why it matters |
|---|---|---|
| Fabric | Consumption per garment (metres or kg) and unit price | The largest single variable; exposes GSM assumptions |
| Sewing | Stated SAM or a labour figure per garment | Reveals how the factory has costed complexity |
| Decoration | Per-colour, per-placement pricing | Print colour count is a hidden multiplier |
| Trims and labels | Itemised, not bundled | Custom labels are often underestimated |
| Packaging | Cost per polybag, per carton | Retail-ready packing changes unit cost materially |
| Sampling | Fee per round and whether it is refunded | Should be credited against bulk on order |
| Payment terms | Deposit percentage and balance trigger | Affects your working capital, not just price |
Two quotations can differ by 20% and both be honest — the difference is usually fabric grade, decoration count, or packing standard. Ask which. A supplier who cannot explain their own breakdown is a supplier who cannot protect your margin when a material price moves.
Normalise before you compare. Convert every quote to a delivered unit cost at your destination, including freight and duty. The lowest ex-works price is frequently not the lowest landed cost.
Approving the counter-sample
The counter-sample is where the brief is validated. Approve it against the written specification, not against your memory of the design. Work through the following in order:
- Measure every POM with a tape or gauge and record actual against specified, with tolerance applied
- Confirm fabric weight with a GSM cutter if the handfeel feels light
- Check colour under daylight, not office lighting, and against the agreed Pantone
- Verify decoration placement dimensions, colour count and registration
- Test the hard points — zip runs, button retention, seam strength at stress points
- Confirm the label set and care-instruction wording
- Sign and date the approved sample and photograph the signed tag
Comment in writing, referencing the POM name and the measured value. "Sleeve feels long" invites interpretation; "sleeve length from CB, spec 62 cm, actual 64.5 cm — reduce to 62" does not.
Six briefing mistakes that delay production
These are the recurring causes of slipped schedules in apparel manufacturing, in the order they usually appear:
- Sending a photo instead of a specification. Images cannot be measured; a picture supports a spec, it does not replace one.
- Leaving the size ratio blank. Grading cannot start and the size breakdown cannot be costed.
- Specifying colour by name. "Forest green" is not a colour reference. Use Pantone.
- Splitting the brief across email threads. Consolidate into one current document.
- Not stating the target price. A stated target lets the factory propose value engineering instead of quoting above your budget.
- Changing the brief after sampling. Every change after counter-sample approval re-opens costing; it is the most expensive moment to revise.
Ask for a costed alternative. When a quote exceeds your target, ask what would have to change to hit it — GSM, decoration count, or trim specification. Suppliers generally know where the money is and will tell you if asked directly.
FAQ
How long does sampling take?
For most apparel styles, a counter-sample takes 3–7 days depending on complexity, fabric availability and how complete the brief is. Styles with custom-developed fabric add lead time for the mill itself.
Can I skip the tech pack for a simple style?
You can shorten it, but not remove it. A basic T-shirt still needs composition, GSM, measurement chart, colour reference and label set — that is five lines, not five pages.
What if I only have a physical sample and no drawing?
Send the sample. Factories can measure it and reverse-engineer a specification, and many OEM projects start exactly this way. Confirm the measurement chart in writing before production begins.
Should I send the target price first?
Yes. Stating a target with your quality floor produces a more useful response than an open brief, because it lets the supplier propose the construction and material combination that fits.
How many sampling rounds are normal?
Two to three for a new style is typical: first counter-sample for fit and measurement, second for corrections and colour, third for pre-production confirmation where decoration or structure is involved.
Ready to brief your next style?
Dongguan Apparel Manufacturing operates a full-category apparel factory in Dongguan, Guangdong, covering men's, women's, kids', activewear and made-to-order garments with OEM/ODM support from design through delivery. Send your drawing, specification or physical sample and our team will return a costed quotation and sampling plan.
Email Apparel [email protected] or reach the sales desk on +44 7892864589.