Garment Sample Types: The Short Answer
If you are a brand owner looking at a development timeline full of abbreviations, here is the short answer. The main garment sample types are the proto sample, which tests the design; the fit sample, which tests measurements; the pre-production (PP) sample, which proves the garment can be made from the real bulk materials; and the sealed sample, which is the signed reference that bulk production and inspection are judged against. Each has one main job, and the mistakes begin when a sample is asked to do two jobs at once.
Names vary between factories. One calls a sample the “development sample”, another the “first sample”, and the same word can mean slightly different things. Agree the meaning of each term in writing at the start, and then the abbreviations stop being a source of confusion.
Garment Sample Types Compared: From Proto to Sealed
The table puts the common stages side by side. Read across a row to see what each sample is made from, what it proves, who normally approves it, and what happens next. Your factory may use different labels or skip a stage for simple repeat styles, so treat it as a map and not a rule.
Sample type, made from, purpose, approver and next step
| Sample type | Made from | Purpose | Approved by | Next step |
|---|---|---|---|---|
| Proto (development) sample | Substitute or similar fabric and trims | Check design, construction and overall look | Brand designer or owner | Fit sample with corrections |
| Fit sample | Similar or final fabric in a base size | Check measurements and how it fits on a body | Brand, often with a fit model | Repeat fit round or material approval |
| Fabric and colour approval | Lab dips, swatches or strike-offs | Confirm shade, handle and finish | Brand | Pre-production sample |
| Pre-production (PP) sample | Actual bulk fabric and trims | Prove the final garment before cutting | Brand, with the factory | Sealed sample and bulk cutting |
| Sealed sample | The approved PP sample, signed or tagged | Reference for bulk and inspection | Both sides | Kept for comparison |
| Top of production (TOP) sample | Early garments from the bulk run | Confirm bulk matches the PP | Brand or inspector | Release or correct bulk |
| Salesman (sales) sample | Final design, sometimes in sample quantity | Show customers and take orders | Brand | Order confirmation |
A general map. Stage names, the materials used and who approves differ by factory and product, so confirm the meaning of each term at the start.
Two of these deserve a closer look because buyers confuse them most often.
Proto Sample vs Fit Sample
A proto sample answers the question “is this the garment I drew?”. It is often made from substitute fabric to save time, so colour and handle may be off, and that is acceptable. Judge the shape, the construction, the detailing and the proportions. A fit sample answers a different question: “does it measure and sit as intended?”. For that you need a believable fabric weight and stretch, because fit on a thin knit and a heavy fleece will not match.
Why the two get mixed up
Brands sometimes approve a proto sample for look and then assume the sizes are settled. They are not, because the pattern is usually still being refined. If you hold a single base size in your hand, the grade across the range has not yet been tested. Our guide to the pattern maker and grader explains how a pattern becomes a size range.
A fit model matters
Measurements on a flat table tell only part of the story. Try the fit sample on a person whose body is close to your target customer, and take photographs from the front, side and back. Combine those with the measured specification in your tech pack before writing feedback.
Pre-Production, Top of Production and Sealed Samples
A pre-production sample, usually shortened to PP sample, is the final check before the factory cuts bulk fabric. It is made from the actual bulk fabric and trims, with the final labels, wash, print or embroidery, so it shows what bulk will look like. Approving a PP sample is the point at which the specification is locked. Skipping it is the most common false economy in development, because any fabric, shrinkage or colour problem then appears for the first time in the bulk goods.
A top of production sample, sometimes called a TOP or production sample, is taken from the first garments off the line and compared with the PP sample. It checks that bulk is consistent with what you approved while there is still time to correct the line. A sealed sample is a PP sample that both sides have signed or tagged and each keeps. During inspection, the inspector compares bulk garments with it. Our guide to pre-shipment inspection for clothing shows how that comparison works in practice.
Keep one sealed sample yourself and make sure the factory holds a matching one. An approval that exists only in your inbox cannot be put on a table beside a bulk garment. Label each sealed sample with the style, date and approval reference.
Where Review Attention Goes Across the Stages
Not every stage needs the same effort from you. Design questions are settled early, fit takes the longest conversation and the pre-production sample carries the most risk. The chart gives one picture of how review attention might be spread. It is an illustration for planning, not a measurement.
Illustrative split of review attention across sample stages
Illustrative, set by the buyer
- Proto sample20%
- Fit sample rounds35%
- Pre-production sample30%
- Bulk reference and sealing15%
Illustrative only. A planning aid set by the buyer, not a statistic. A simple repeat style may need far less attention at the early stages.
The pre-production share is high because that is the last sample before money is committed to cutting. Fit takes a large share because it is the stage most likely to need several rounds.
Another way to see the stages is by the risk each one removes. The ratings below show which garment sample types reduce which kind of risk. They are indicative judgements, not measurements.
Indicative risk removed by each sample stage
1 dot = low, 5 dots = high
| Design | Fit | Materials | Bulk match | |
|---|---|---|---|---|
| Proto sample | ●●●●● | ●●●●● | ●●●●● | ●●●●● |
| Fit sample | ●●●●● | ●●●●● | ●●●●● | ●●●●● |
| Fabric and colour approval | ●●●●● | ●●●●● | ●●●●● | ●●●●● |
| Pre-production sample | ●●●●● | ●●●●● | ●●●●● | ●●●●● |
| Top of production sample | ●●●●● | ●●●●● | ●●●●● | ●●●●● |
Indicative ratings: more dots means the stage removes more of that risk. They show emphasis, not guarantees.
No single sample removes every risk, which is why the path has several stages. The pre-production sample covers the widest ground, but it works best when the earlier samples have already settled design and fit.
What to Check and Approve at Each Stage
A sample only protects you if you check it against something specific. The table lists what to look at in each stage and what the sign-off means. Keep your tech pack, measurement chart and bill of materials open as you review.
What to check at each of the garment sample types
| Stage | Check | Sign-off means |
|---|---|---|
| Proto | Silhouette, proportions, seams, pockets, construction method, placement of details | The design is interpreted correctly; pattern work can continue |
| Fit | Key measurements against the specification, how it sits on a body, movement, comfort | Fit is acceptable, subject to listed corrections |
| Fabric and colour | Shade under daylight and shop light, handle, weight, shrink and wash result | The material is approved for bulk |
| Pre-production | Everything: fabric, trims, labels, stitching, finishing, packing, decoration, measurements | Specification locked; bulk can be cut |
| Top of production | Match to the PP sample, consistency across the first pieces, measurements within tolerance | The line is running correctly |
| Sealed | Signature, date, style reference and matching copies held by both sides | The benchmark is fixed for inspection |
A review guide, not a complete specification. Add checks specific to your product, such as zips, prints or washes.
If your product involves a wash or special finish, build that into the sample path early. Denim in particular follows its own sequence, set out in our guide to jeans sampling: fit, wash and PP samples.
How to Give Feedback That Keeps Rounds Down
Feedback quality decides how many rounds you need. A vague message such as “make it more fitted” leads to guesswork, while a numbered list with measurements and photographs leads to the right change on the next sample. Send one consolidated list after reviewing the whole garment, not messages as you notice things.
A consolidated feedback list should include
Send once per round
- The style number, sample type and round number
- Measured differences against the specification, in the same unit as the tech pack
- Photographs with arrows or circles on the problem area
- What to keep unchanged, so approved details are not altered by accident
- Priority: must fix, should fix, would like
- A clear statement of whether another sample is needed or the stage is approved
Testing fits in here too. Shrinkage and colour fastness are best checked on the PP sample, before bulk. Test methods are published by bodies such as AATCC and ISO, so ask your factory or laboratory which method applies and confirm the current edition.
How Many Samples Does Each Style Need?
The right number of garment sample types depends on the style. A repeat of an approved garment may need only a check at the pre-production stage. A new design in a new fabric needs the full path. The bar chart shows illustrative sample counts for different routes, so you can plan time and budget.
Illustrative number of samples per style by route
Illustrative sample count
Illustrative counts assuming the stages shown and one round each, except where two fit rounds are stated. Real products may need more or fewer samples.
Each extra sample adds time and cost. Our guide on the cost of clothing samples shows how to turn these counts into a budget.
The Sample Path in Five Steps
Pulling the stages together gives a path you can follow for most cut-and-sew products. The infographic shows the order and the decision at each step.
A typical sample path
- 1ProtoCheck the design and construction.
- 2FitCorrect measurements and fit over one or more rounds.
- 3MaterialsApprove fabric, colour and finish.
- 4Pre-productionApprove the final garment from bulk materials, then seal it.
- 5Bulk checkCompare top of production and final garments against the sealed sample.
Simple styles may skip proto or materials. Never skip pre-production when bulk fabric differs from the earlier samples.
Some stages overlap in practice, and a factory may combine proto and fit for a simple style. What should not be combined is the approval of bulk materials and the release for cutting. Those need a clear, written yes.
How Ruhrose Approaches Samples
Ruhrose develops and produces hoodies, jersey, denim and woven casualwear in Bangladesh with UK buyer support. We sample before bulk, agree the meaning of each sample term at the start, and ask the buyer to sign off a pre-production sample before cutting begins. If you want help setting that up, see Ruhrose’s clothing development and production services or our guide to the garment sampling process. Which of your current samples is trying to do two jobs at once?