Quick answer: A bag development programme runs through five stages — brief, quotation, sample, approval, bulk. Each stage ends with something agreed in writing, and each one is cheaper to fix than the next. Time is rarely lost in production; it is lost in the gaps between stages, where an unanswered question holds up the next step.
The five stages at a glance
Every programme that reaches bulk production has passed through the same sequence, whether it is a single cosmetic pouch or a multi-style range. The names differ between factories; the structure does not.
Stage 1 — The design brief
The brief is the document that makes everything downstream possible. It does not have to be elaborate, but it does have to be complete enough that two different factories reading it would build the same bag.
What belongs in it:
- Product type and use. What the bag is for matters more than what it looks like. A pouch that lives in a handbag and a pouch that sits on a bathroom shelf will be specified differently.
- Dimensions, stated as length × width × height with the measurement convention named, since a bag's "width" and "depth" are easily transposed.
- Material direction. PU, PVC, genuine leather, canvas, nylon — and whether the surface needs to be wipe-clean, abrasion-resistant or printable.
- Structure expectation. Should the bag stand up on its own, or is soft and foldable the goal? This single answer settles a large part of the construction.
- Hardware and closures. Zip type and finish, snaps, buckles, rings, and how they should feel in the hand.
- Decoration. Logo placement, method (embossing, screen print, woven label, metal plate) and colour.
- Quantity and target market. Quantity drives cost; market drives the compliance and labelling requirements.
- Target date. A date, not a hope. It determines what is achievable without expediting.
The most useful thing a buyer can add to a brief is a photograph of an existing product with the sentence "like this, but…". It resolves dozens of small ambiguities in one line.
Stage 2 — Quotation and specification freeze
With a complete brief, the factory can quote against a defined product rather than a guess. The quotation should state what it includes: material grade, hardware, decoration method, packing, and which Incoterm it is priced on.
This stage is where the specification gets frozen — not permanently, but as the version that sampling will be judged against. If the brief changes after quoting, the quote changes; that is normal, and it is far cheaper than discovering the mismatch in production.
If you are collecting several quotations, ask every supplier to respond to the same brief. Quotes built on different assumptions are not comparable, and the cheapest one is often the one that assumed the least.
Stage 3 — Sampling
Sampling exists to prove the brief and the interpretation are the same product. A sample is normally available within about a week for a straightforward programme, with more complex work taking longer.
What a sample should let you check:
- Proportions in the hand, not on paper — a bag that looks right in a drawing can feel wrong when held.
- Material behaviour: how it creases, how it catches light, whether it marks.
- Colour under realistic light, not just the light of the room the sample arrived in.
- Hardware operation: does the zip run smoothly, does the snap engage cleanly, do the rings sit flat.
- Construction at the stress points — handle attachments, zip ends, base corners.
Treat the sample as the last point at which a change is cheap. Once bulk material is cut, the pattern is committed.
Stage 4 — Approval
Approval is a written act, not a verbal one. "Looks good, go ahead" is the phrase behind a large share of later disputes, because both sides remember a slightly different conversation.
A workable approval record contains:
- Confirmation that the sample matches the frozen specification, item by item.
- A list of any deviations that are accepted, with the deviation described precisely.
- The retained physical sample that will act as the reference for production and reorders.
- Any points to be confirmed before shipment, and who confirms them.
The retained sample is the most valuable object in the programme. It settles every later disagreement about colour, texture or construction without argument, and it costs nothing to keep.
Stage 5 — Bulk production and inspection
Bulk orders normally run in the region of 35–45 days, though peak season and special materials can extend this. Production begins with material intake and runs through cutting, preparation, assembly, finishing and packing.
Inspection should happen at more than one point. Checking only the finished goods catches errors at the moment they are most expensive to fix. Checking incoming material catches them when they are still cheap. A workable pattern is an intake check on material and hardware, an in-line check at assembly, and a final check before packing — with the retained sample on the bench for reference at each.
Packing deserves its own line in the specification. A bag that arrives creased, scuffed or with hardware poking through the outer carton is a quality problem regardless of how well it was made.
Where programmes actually lose time
Production is rarely the bottleneck. The delays concentrate in three places:
The gap after the brief is sent. Questions come back, one side waits. Each round trip costs days. Answering thoroughly once is faster than answering briefly three times.
The gap after the sample arrives. The sample sits on a desk awaiting a decision, and the approved sample is not returned. The factory cannot start until it has the approval, and it should not start without the retained reference.
Late specification changes. A change requested after material intake typically costs more than the same change requested at sampling — sometimes by a large margin, because material may already be cut or ordered.
None of these are manufacturing problems. They are communication gaps, and they are the part of the timeline a buyer controls directly.
A practical timeline
| Stage | Typical duration | What the buyer owes |
|---|---|---|
| Brief | Buyer-controlled | Complete specification, quantity, target date |
| Quotation | Days | Confirm which assumptions the quote rests on |
| Sampling | About 7 days for straightforward work | Timely feedback in one consolidated round |
| Approval | Buyer-controlled | Written approval plus retained sample |
| Bulk production | 35–45 days typical | Confirmation of artwork and packing before start |
How to keep a programme on schedule
Three habits account for most of the difference between a programme that lands on time and one that drifts.
Consolidate feedback. One considered response beats four quick partial ones. Every separate round costs a full cycle.
Approve in writing, retain a sample. Put the accepted version in a record both sides hold, and keep the physical reference.
Treat changes as decisions with a cost. There is nothing wrong with changing your mind about a detail. There is something wrong with discovering, later, what it cost — so ask at the moment of the change rather than after production starts.
To start a programme, send your brief and target quantity through our contact page, and see our FAQ for sampling and lead-time details.