A strong brief is the single largest determinant of whether a bespoke bag programme arrives on time and on specification. In practice a buyer needs three documents before sampling begins: a dimensioned sketch, a tech pack covering materials, hardware and tolerances, and a set of reference images that communicate intent rather than a design to be copied. Programmes that open with nothing but a mood board routinely need three or more sampling rounds before the silhouette is agreed; programmes that open with a measured brief usually settle in two. The brief is not paperwork. It is the specification that the production floor will later be measured against.
Why the Brief Determines the Outcome
Every bag that leaves a sampling room began as a pattern, and every pattern began as a set of numbers. When those numbers are missing, the pattern cutter improvises, and improvisation is expensive. A bespoke bag maker does not guess at your intent because guessing produces a sample that is neither right nor usefully wrong — it produces a sample that is merely different, and each round of difference costs calendar time that most launch calendars cannot absorb.
The brief also serves a commercial function. It is the document against which the quotation is calculated, against which the sample is approved, and against which the finished bulk shipment is inspected at AQL 2.5 under ISO 2859-1. A vague brief invites a vague quote, and a vague quote is the most common origin of dispute in this trade. Buyers who treat the brief as a formality tend to discover its importance at the point of final inspection, which is the worst possible moment to discover anything.
- The brief converts intent into numbers — dimensions, tolerances, material weights and stitch densities.
- It fixes the commercial baseline, so a quotation can be compared line by line against a defined scope.
- It anchors sampling, so each revision round moves toward a known target instead of a moving one.
- It becomes the inspection reference once bulk production begins, which protects both parties.
- It shortens the path from first sketch to approved sample, which is where most launch delays originate.
- It allows the programme team to flag constructability problems before leather is cut rather than after.
What a Sketch Must Communicate
Programme parameters at a glance
| Parameter | Commitment |
|---|---|
| Minimum order quantity | 500 pieces per style / colourway |
| Sampling lead time | 6–10 working days (12–15 days for complex constructions) |
| Bulk production lead time | 35–50 days after sample approval |
| Inspection standard | AQL 2.5 (ISO 2859-1), single sampling, general level II |
| Incoterms | FOB Xiamen — EXW, CIF and DDP available on request |
| Payment terms | T/T 30% deposit / 70% before shipment; L/C at sight for container loads |
| Verified production floor space | 4,950 m² (SGS-verified) |
| Team | 137 staff across 7 production lines |
| Equipment | 149 machines including computerised saddle-stitch and edge-painting units |
| Monthly capacity | 200,000 pieces |
| Entity | Founded 2014; principal has worked in bag development since 2004 |
A sketch does not need to be beautiful. It needs to be unambiguous. Hand drawings, CAD elevations and even annotated photographs of an existing prototype can all serve, provided that they answer the same set of questions. The most frequent omission is the side view: a front elevation of a tote tells the pattern cutter nothing about the gusset depth, and gusset depth is what determines whether a laptop actually fits. Include a scale anchor as well — a coin, a ruler, or a stated dimension — because a drawing without scale is a drawing without meaning.
| Sketch element | What the maker needs from it | Typical omission |
|---|---|---|
| Front elevation | Outline, panel breaks, pocket placement, hardware positions | Hardware centre marks left unstated |
| Back elevation | Whether the reverse is plain, padded or pocketed | Assumed identical to the front |
| Side or section view | Gusset depth, base construction, how the bag stands | Omitted entirely, gusset guessed |
| Opening and closure | Zip line, flap geometry, magnet or turn-lock position | Closure shown but not dimensioned |
| Carry position | Handle drop, strap length, attachment points | Drop measured from wrong reference point |
| Internal layout | Divider, slip and zip pocket positions, linings | Interior left to the maker to decide |
| Scale anchor | A stated dimension or a recognisable object for scale | No anchor, proportions misread |
Building a Tech Pack That Survives the Factory Floor
A tech pack is the working document of the programme. Where the sketch says what the bag looks like, the tech pack says what it is made of, how it is assembled and how much deviation is acceptable. The most useful tech packs are not the longest ones; they are the ones where every line can be verified on a finished sample. Where a value is genuinely open, state that it is open and let the maker propose, rather than leaving a blank that will be filled by assumption.
| Tech pack field | Detail required | Why it matters |
|---|---|---|
| Style code and revision | Unique code, season, revision date | Prevents the wrong revision being sampled |
| Dimensions and tolerance | Width, height, depth, drop, plus stated tolerance | Sample approval becomes objective, not subjective |
| Material specification | Leather type, substance in millimetres, finish, tannage | Drives cost, weight, drape and ageing |
| Colour standard | Pantone reference or approved physical swatch | Screens and printers never match leather dye |
| Hardware specification | Alloy, finish, size, puller type, plating standard | Plating is the most common source of rejection |
| Lining and interlining | Lining material, weight, reinforcement schedule | Determines structure and interior durability |
| Stitch specification | Stitches per inch, thread type, seam construction | Affects strength and the visual grade of the piece |
| Edge finish | Edge paint, burnished, turned or bound | Edges are the first place a bag looks cheap |
| Branding and markings | Deboss, foil, woven label, embroidery, placement | Requires tooling and lead time of its own |
| Packing specification | Polybag, tissue, dust bag, carton quantity | Often forgotten until goods are ready to ship |
Using Reference Images Without Copying
Reference images are the most efficient way to communicate a feeling, and the most efficient way to create a legal problem. The distinction that matters is between referencing an effect and reproducing a design. Reference the proportion of a handle, the way a flap falls, the softness of a corner, the tone of a lining. Do not hand over a competitor product with the instruction to reproduce it. Any competent bespoke bag specialist will decline that request, and a maker who accepts it is telling you something about how they treat intellectual property.
- Annotate every reference image with the single attribute you want borrowed, not the whole object.
- Use material and finish references separately from silhouette references so neither is over-read.
- Avoid sending competitor branding, logo hardware or signature quilting patterns as guidance.
- Where a detail is protected, describe the effect in words and let the maker propose a construction.
- Keep a written record of which references were supplied, so the design origin can be evidenced later.
- Ask the programme team to confirm in writing that no third-party design rights are engaged.
Give us the effect you want, not the object you saw. The first produces a design that is yours; the second produces a problem that is also yours.
Specifying Materials, Hardware and Tolerances
Material and hardware decisions are where cost, durability and compliance meet. A leather specified only as genuine leather is not a specification at all; it spans a range from corrected grain to full-grain and a price difference of several multiples. Specify the cut, the substance, the tannage and the finish. For programmes entering the European market, REACH restrictions on certain substances apply, and for anything sold to children, CPSIA limits apply in the United States. Where traceability matters, ask for tanneries audited under the Leather Working Group protocol, and where linings and threads touch skin, OEKO-TEX certification is a sensible requirement.
| Parameter | Typical specification | Note for the buyer |
|---|---|---|
| Leather cut | Full-grain, top-grain, corrected grain | Full-grain ages; corrected grain is uniform but flatter |
| Substance | 1.2–1.4 mm for slouch, 1.8–2.2 mm for structure | Match substance to the silhouette, not to price |
| Tannage | Chrome for softness, vegetable for structure and patina | Vegetable tannery lead times are longer |
| Hardware alloy | Zinc alloy, brass, stainless steel | Brass costs more and patinates; steel is brightest |
| Plating standard | Nickel-free, light gold, gunmetal, brushed | State the standard and ask for a plating sample |
| Lining | Cotton twill, microfibre, sueded split, canvas | Lining weight changes the bag as much as the shell |
| Thread | Bonded nylon or polyester, ticket number stated | Thread failure is the most common warranty claim |
From Brief to Sample: The Approval Sequence
Once the brief is complete, the sequence is largely mechanical. What varies is how much of it the buyer participates in. Remote approval is entirely workable provided photographs are taken to an agreed standard: front, back, both sides, base, interior, hardware macro and a scale reference in frame. Video of the closure operating is worth more than a dozen stills. Sampling runs six to ten working days for standard constructions and twelve to fifteen for complex ones, and bulk follows thirty-five to fifty days after sample approval.
- Submit the brief: sketch, tech pack, references and target quantity per style and colourway.
- Receive a constructability review, where the maker flags anything that will not survive production.
- Confirm materials and approve physical swatches rather than digital colour approximations.
- Agree the commercial terms, including the sampling fee and how it is treated against bulk.
- Pattern and first sample are produced, typically six to ten working days from brief confirmation.
- Review the sample against the brief line by line and annotate photographs with the required changes.
- Approve the revised sample in writing, then release bulk production and book inspection.
Common Briefing Failures and Their Cost
Most briefing failures are not failures of imagination. They are omissions — a missing dimension, an unstated tolerance, an assumed lining. The table below sets out the failures that appear most often across bespoke programmes, what they cost in calendar terms, and the correction that prevents them. Note that the cost of each is measured in sampling rounds, and each sampling round is measured in weeks that a launch calendar cannot recover.
| Briefing failure | Typical consequence | Correction |
|---|---|---|
| No side view supplied | Gusset guessed, capacity wrong by a wide margin | Add a section view with depth dimensioned |
| Colour specified by screen | Dye lot approved then rejected on arrival | Approve a physical leather swatch under daylight |
| Hardware finish unstated | Plating tone rejected at first sample | Specify alloy, finish and request a plated sample |
| Tolerance left blank | Panels do not align, closure does not sit flat | State tolerance on every dimension |
| Lining unspecified | Interior undermines the perceived grade | Specify lining material, weight and colour |
| Quantity not stated | Quotation built on the wrong price break | State pieces per style and per colourway |
Who Should Own the Brief Internally
One person should own the brief. In programmes where design, sourcing and marketing each send partial instructions to the maker, the result is a document that contradicts itself and a sample that satisfies nobody. The owner does not need to be the most senior person in the room, but they do need the authority to close questions rather than forward them. Where a brand has no in-house technical resource, the natural arrangement is for the programme coordinator on the maker side to maintain the master tech pack, with the brand signing off each revision.
Ownership also determines the revision record. Every change should be logged with a date, a reason and a revised drawing or specification, because that record is what protects the brand if a dispute arises later about what was approved and when. A disciplined revision log also makes reordering straightforward: a repeat order placed twelve months later can be produced against the last approved revision without re-opening the entire development conversation, which shortens the repeat cycle considerably.
- Nominate a single brief owner who can close technical questions without escalation.
- Keep one master tech pack; circulate copies, never parallel versions with separate edits.
- Log every revision with date, reason and the revised dimension or specification.
- Confirm approvals in writing, referencing the revision code rather than a photograph alone.
- Archive the approved sample and swatch card as the physical reference for reorder.
- Reissue the brief as a formal revision whenever quantity, market or compliance scope changes.
Send us your brief
Share a sketch, a tech pack or even a napkin drawing and the programme team will return a constructability review, a material recommendation and a sampling timeline. Email service@junyuanbags.com or reach us on WhatsApp at +86 177 5002 0688.
Frequently Asked Questions
What is the minimum information I need before I can brief a bespoke bag maker?
You need three things: a silhouette with at least one stated dimension, a material direction, and a target quantity. That is enough to start a conversation and receive an indicative quotation. To begin sampling you also need a side view, a hardware direction and a lining specification. Buyers who arrive with only a mood board can still proceed, but they should expect an extra round of development before the silhouette is settled.
Do I need a professional technical drawing to commission a bespoke bag?
No. A clear hand sketch with dimensions, a photograph of an existing item annotated with changes, or a CAD elevation all work equally well. What matters is that the drawing is dimensioned and that it shows the side profile. Professional drawings help when the construction is complex, but they are not a prerequisite and no serious maker will reject a brief for being hand drawn.
How detailed should a bag tech pack be?
Detailed enough that every line can be checked against a finished sample. In practice that means dimensions with tolerances, material specifications including substance and finish, hardware specification with plating standard, lining, stitch density, edge finish, branding placement and packing method. Where a value is genuinely undecided, write open rather than leaving a blank, so the maker proposes rather than assumes.
Can I send photographs of a designer bag as a reference?
You can send them, but you should not ask for them to be reproduced. Reproducing a protected design creates legal exposure for both parties and most established makers will decline. A better approach is to annotate the image with the single attribute you admire — the proportion of the handle, the softness of the corner — and let the maker propose how to achieve that effect with original construction.
What tolerance should I specify on bag dimensions?
For soft constructions a tolerance of plus or minus three to five millimetres on width, height and depth is workable. For structured bags, framed bags and anything with a fitted interior, tighten that to two or three millimetres. Handle drop and strap length usually carry a slightly wider tolerance because leather stretches. State the tolerance in the tech pack rather than relying on a house standard.
How long does it take to turn a brief into a physical sample?
Sampling runs six to ten working days for standard constructions once the brief and materials are confirmed, and twelve to fifteen working days for complex constructions involving frames, moulded shells or exotic skins. Material sourcing can add time if a specified leather is not held in stock. Bulk production then takes thirty-five to fifty days after written sample approval.
Who owns the design once I have briefed a maker?
Design rights should sit with the commissioning brand, and this should be stated in the programme agreement before sampling begins. Practically, ownership is protected by keeping a dated record of your brief, your sketches and your revision notes. Where a maker contributes construction solutions, those are normally licensed to the programme rather than retained, but the position should be written down rather than assumed.
Should I specify the leather by grade or by name?
Specify by measurable attributes: cut, substance in millimetres, tannage and finish. Trade names vary between tanneries and mean little across borders. Full-grain, 1.4 to 1.6 millimetres, vegetable tanned, aniline finished is a specification that can be checked. Premium leather is a description that cannot. Where a tannery is audited under the Leather Working Group protocol, record the tannery name as well.
What is the most common mistake first-time buyers make in a brief?
Omitting the side view. A front elevation of a bag gives no information about gusset depth, and gusset depth determines capacity. The second most common mistake is specifying colour from a screen, which produces an approved dye lot that is rejected on arrival. Both are avoidable with a section drawing and a physical swatch approved under daylight.
How many sampling rounds should I budget for?
Two rounds is the realistic planning figure for a well-briefed programme: a first sample to check construction and a second to confirm corrections. Complex bags with frames, moulded interiors or unusual hardware often need three. Each round costs the full sampling cycle rather than a few days, so the cheapest way to reduce rounds is to complete the brief before the first sample is cut.
Can a brief be changed after sampling has started?
It can, but every change restarts part of the cycle. Material changes generally require a new sample because drape and weight shift with the hide. Dimensional changes require a new pattern. Branding changes may require new tooling with its own lead time. The disciplined approach is to freeze the brief at sample approval and record any subsequent change as a formal revision with a revised cost and date.
What should a reference image caption say?
One attribute, stated plainly. Write that you want the softness of this corner, the proportion of this handle, or the way this flap falls short of the lock. Do not write make this bag. A caption that isolates a single attribute lets the maker solve the problem constructively; a caption that points at an entire object asks them to copy it.
Do I need to specify the packing method in the brief?
Yes, and it is frequently overlooked. Packing specification covers the polybag, tissue, dust bag, carton quantity and any care card or barcode labelling. Leaving it open means goods are packed to a house standard that may not suit retail presentation, and changing packing after production is both slow and costly. Include it in the tech pack from the start.
How do I brief a bag if I do not yet know the materials I want?
Brief the function and let the maker propose materials. Describe how the bag will be carried, what it must hold, the environment it will be used in and the price position you are targeting. A sourcing partner can then recommend two or three material directions with cost and durability implications, and you can approve physical swatches before sampling begins.
What happens if the brief and the quotation disagree?
Reconcile them in writing before sampling. A quotation is calculated against a scope, and if the brief changes the scope the price changes with it. Ask for the quotation to be itemised against the tech pack line by line, so any divergence is visible immediately. This reconciliation is the single most useful commercial conversation in the entire programme.
Should I include compliance requirements in the brief?
Include them early, because they constrain material choice. REACH applies to goods entering the European market, CPSIA applies to children's products in the United States, and OEKO-TEX certification is often requested for linings and threads that contact skin. Stating the target market and the applicable standard at briefing stage avoids the expensive situation of a beautiful sample that cannot legally be sold.