A factory brief is the document you send before a tech pack—or alongside one—to give a potential manufacturing partner everything they need to price your product accurately. When a brief is thin, factories fill the gaps with assumptions, and those assumptions almost always cost you money in correction rounds. Get the brief right and your first quote reflects reality.
Key takeaways
- A complete factory brief covers six areas: product overview, quantities, fabric and trim specs, construction complexity, delivery window, and compliance requirements.
- Vague or missing information in any one area is enough to push a quote 15–30% off actual cost.
- Factories quote what they can see; anything left unspecified is priced at their safest (most expensive) assumption.
- A brief is not a tech pack—it sits upstream and shapes whether a factory will even bid, and at what confidence level.
- Treating the brief as a living document—updated as design firms up—reduces the number of requote cycles over a season.
Why do first quotes so often miss the mark?
The most common reason is not factory error. It is incomplete information. When a sourcing team sends a mood board, a rough sketch, and a target price, the factory has to guess at yarn count, seam construction, label placement, wash requirements, and minimum order quantities. Each guess introduces variance. Stack five or six of them and the quote can be structurally wrong before anyone has touched a sewing machine.
The second reason is timing. Briefs sent before fabric has been confirmed force factories to quote on a placeholder material that may behave very differently in cut-and-sew from whatever you eventually select. If your woven shell later becomes a bonded technical fabric, the quote is useless.
The third reason is format. An email thread with attachments scattered across three replies is not a brief. Factories process dozens of enquiries a week. A structured, single-document brief signals that you are a serious buyer and makes it easier for their costing team to work quickly and accurately.
What goes into a factory brief that actually works?
1. Product overview
Start with a one-paragraph description of the garment: category (woven jacket, knit dress, technical trouser), intended end use (outdoor, workwear, occasionwear), gender and size range, and any brand positioning that affects quality expectations. This paragraph tells the factory which production line and which costing team to involve. A technical outdoor jacket and a fashion jacket may look similar on a sketch but require entirely different machinery, operators, and lead times.
Attach a flat sketch or a reference image. Even a rough CAD flat is better than nothing. If you have a reference sample or a similar style from a previous season, say so—factories can use it to anchor their assumptions.
2. Quantities and order structure
State your minimum order quantity (MOQ) expectation, your target order quantity, and whether you expect repeat orders. Factories price per unit on a curve: a 300-unit run costs significantly more per piece than a 3,000-unit run because setup, sampling, and overhead are spread across fewer garments.
Also specify the size breakdown. A run of 500 units split evenly across eight sizes is a different production challenge from 500 units concentrated in two sizes. If you are still finalising the ratio, give a provisional split and flag it as such—factories can re-cost quickly once the real numbers land.
3. Fabric and trim specifications
This section is where most briefs fall apart. "Polyester shell with a fleece lining" is not a specification. A usable spec includes:
- Fibre content and blend (e.g., 87% recycled nylon, 13% elastane)
- Weight (gsm or oz/yd²)
- Construction (woven, knit, bonded, laminated)
- Finish or treatment (DWR, anti-pill, enzyme wash)
- Colour standard (Pantone reference or physical standard)
- Supplier or approved equivalent — if you have a preferred mill or a fabric already confirmed, name it; if you are open to factory sourcing, say so explicitly
Repeat the same logic for every trim: zipper (brand, gauge, length, pull type), buttons (material, diameter, shank or sew-through), labels (woven, printed, placement), thread (colour, ticket number if known), and any hardware.
A bill of materials (BOM) at brief stage does not need to be fully costed, but it does need to list every component. According to NetSuite's guide to BOMs in fashion, a BOM treated as a living document—updated as design firms up—is a core page within a tech pack and a foundation for accurate sourcing and costing. Starting that document at brief stage, even partially, gives factories a structured reference rather than a list of assumptions.
4. Construction complexity
This is the section most sourcing teams skip, and it is the one that causes the largest quoting errors. Construction complexity drives labour cost, and labour cost is the variable factories find hardest to estimate from a sketch alone.
Be explicit about:
- Seam types: flatlock, overlock, bound seam, French seam, taped seam
- Panels and piecing: how many pattern pieces, any unusual shapes or angles
- Special operations: bonding, welding, embroidery, screen print, heat transfer, laser cut
- Finishing details: bartacks, topstitching distance, pocket bag depth, collar stand height
- Lining: fully lined, half-lined, or unlined; how the lining is attached at hem and cuff
If you have a completed tech pack, attach it. If the tech pack is still in progress, describe the construction in prose and note which details are still being confirmed. A factory that knows a seam is taped can price the tape, the operator time, and the press correctly. A factory that does not know will either omit it or add a contingency buffer.
According to White Label Manufacturing's tech pack guide, tech packs reduce cost and minimise risk precisely because they remove the ambiguity that forces factories into conservative pricing.
5. Delivery window
State your in-warehouse date, your ex-factory date, and your target sample approval date. Then work backwards and check whether those dates are realistic given the factory's typical lead time for your product category.
Also specify:
- Number of sample rounds you expect (proto, fit sample, pre-production sample)
- Whether bulk production can start before final sample sign-off (some brands allow it on low-risk styles)
- Shipping mode: sea, air, or split—this affects the ex-factory date and, indirectly, the factory's production scheduling
A tight delivery window that requires overtime or expedited material sourcing will cost more. Stating it clearly in the brief means that cost is priced in from the start, not added as a surcharge when you are already in production.
6. Compliance and testing requirements
Compliance requirements vary enormously by market, and factories that serve multiple markets will not assume which standards apply to your order. Be specific:
- Chemical compliance: REACH, OEKO-TEX Standard 100, bluesign, or brand-specific restricted substance lists (RSL)
- Social compliance: audit standard required (BSCI, SMETA, SA8000), whether the factory needs to be pre-approved or whether you will audit on award
- Product testing: which tests, which lab, who pays, and at what stage (pre-production vs. pre-shipment)
- Labelling: care label content and format by market (EU, US, Japan each have different requirements)
- Packaging: poly bag gauge, carton dimensions, barcode format, country-of-origin marking
Compliance gaps discovered after a quote is accepted routinely add cost and delay. A factory that needs to source a different dye to meet your RSL, or that needs to commission an audit it has not budgeted for, will either absorb the cost (and resent it) or raise a change order.
How do you structure the document itself?
A factory brief works best as a single PDF or shared document with clearly labelled sections matching the six areas above. Use a table for the BOM components—rows for each material or trim, columns for description, specification, colour, supplier, and status (confirmed / TBC). Use a timeline table for the delivery window.
Keep the prose short. Factories are reading dozens of briefs; dense paragraphs slow them down. Bullet points and tables are faster to process and harder to misread.
Name the file clearly: BrandName_StyleName_[Season]_FactoryBrief_v1.pdf. Version control matters—if you send an update, increment the version number and note what changed in a one-line change log at the top of the document.
What still goes wrong even with a good brief?
Even a well-structured brief cannot compensate for a few persistent problems:
Design is still moving. If the silhouette or fabric is likely to change significantly, say so. A brief sent on a style that is 60% confirmed should be labelled as such. Factories can give a directional quote—useful for budget planning—while flagging that a firm quote will follow once design is locked.
The factory has not made this product before. A brief that assumes a capability the factory does not have will produce a quote that is either wrong (they underestimate the learning curve) or declined. Ask about relevant experience before you send the brief, or include a question in the brief itself: "Please confirm whether you have produced construction type in the last 12 months."
Currency and Incoterms are not specified. A quote in USD FOB Guangzhou is a different number from one in EUR DDP Rotterdam. State both in the brief so all responses are comparable.
Gartner research on procurement processes consistently finds that supplier-facing documentation quality is one of the top controllable variables in first-pass quote accuracy—organisations that standardise their RFQ templates see measurably fewer revision cycles. The principle applies directly to fashion sourcing: a standardised brief template, used consistently across your team, removes the person-dependency that causes quality to vary by who wrote the brief that week.
A quick checklist before you send
- [ ] Product description with end use and quality tier
- [ ] MOQ, target quantity, size breakdown
- [ ] Full BOM: fibre, weight, construction, finish, colour standard for all fabrics; spec for every trim
- [ ] Construction details: seam types, special operations, lining, finishing
- [ ] In-warehouse date, ex-factory date, sample schedule
- [ ] Compliance standard by market, testing requirements, audit status
- [ ] Currency and Incoterms
- [ ] Contact name for technical questions
- [ ] Version number and date on the document
What should you do when quotes still vary widely?
If you send a complete brief and still receive quotes that differ by more than 20%, the brief is not the problem—the factories are. Wide variance on an identical brief usually means one or more factories are quoting on a different assumption about material sourcing, labour rate, or overhead recovery. Ask each factory to break out their quote: material cost, CMT (cut, make, trim), testing, and margin. The breakdown will show you where the divergence is and let you have a productive conversation rather than simply picking the lowest number.
According to Xometry's guide to sourcing quality manufacturing quotes, a quality quote should be fast, accurate, and broken down in a way that lets you compare like with like. The same standard applies to fashion: a quote that arrives as a single per-unit number with no breakdown is hard to evaluate and harder to negotiate.
FAQ
What is the difference between a factory brief and a tech pack? A factory brief is a shorter upstream document used to solicit quotes and assess factory fit. A tech pack is the full technical specification used to produce the garment. The brief comes first; the tech pack follows once a factory is selected.
How long should a factory brief be? For most styles, two to four pages is enough. A complex technical garment with many components might run to six. Longer is not better—clarity is. A two-page brief with complete specs outperforms a ten-page document full of vague descriptions.
Should I send a brief before or after I have confirmed fabric? Ideally after, because fabric specification is one of the largest drivers of cost. If you must brief before fabric is confirmed, mark the material as TBC and provide a specification range (weight, construction, approximate cost tier) so the factory can give a directional quote.
Can I use the same brief template for every factory? Yes, and you should. A consistent template makes responses comparable and signals professionalism. Adjust the compliance section by market and the quantity section by order, but keep the structure identical.
What happens if I leave out compliance requirements? Factories will quote without them. When you introduce requirements later—an audit, a restricted substance test, a specific label format—those costs are added as change orders, often at a premium because they disrupt the production schedule.
How do I handle a factory that asks for information I do not have yet? Be honest. Note the gap in the brief, give your best estimate or range, and commit to a date by which you will confirm. A factory that knows you will confirm fabric by a specific date can hold a production slot; one left guessing will not.
Further reading
- A Guide to the Bill of Materials (BOM) in the Fashion Industry — NetSuite
- The Ultimate Guide to Tech Packs in Clothing — White Label Manufacturing
- Sourcing Quality Quotes for Manufacturing — Xometry