Sampling
Proto, fit, size-set, PP and shipment samples.
What really happens at this stage
Sampling produces the physical garments that validate design intent, construction, fit, and production feasibility at successive stages: proto sample, fit sample, size-set, pre-production (PP) sample, and shipment sample. The proto sample is the first physical build from the initial pattern, used mainly to check silhouette and construction feasibility rather than exact fit. Fit samples follow pattern corrections and are assessed on a fit model or mannequin against the measurement specification. Size-set samples extend the check across the full size range to confirm the grading holds proportion in physical form, not only in the digital pattern. Each round generates a comment sheet that feeds back into pattern development, and the number of rounds needed depends on how well earlier stages, especially pattern and 3D review, anticipated the issues found in physical cloth.
The pre-production sample is made using bulk-approved fabric, trims, and the actual production line or a close simulation of it, and its purpose is to confirm that the garment can be built at scale exactly as approved, not just as a one-off by a skilled sample hand. The shipment sample, pulled from early bulk production, verifies that the running production matches the approved PP sample before the order ships. Sample rooms track turnaround time per round and comment closure rate, since repeated unresolved comments across rounds usually indicate a root cause in pattern or fabric that has not been properly addressed rather than a simple construction slip.
How it is done
- 1Build the proto sample
Construct the first sample from the initial pattern using available fabric, focusing on silhouette and construction feasibility.
- 2Conduct fit sample review
Fit the corrected pattern sample on a fit model or mannequin, measuring against the spec sheet at all points of measurement.
- 3Issue and close fit comments
Log every comment with the responsible action, and confirm each is closed in the pattern before the next sample round starts.
- 4Produce size-set samples
Sew the full size range from the graded pattern and check proportion and fit balance across sizes, not only the sample size.
- 5Make the pre-production sample
Build the PP sample on bulk-approved fabric and trims, following the confirmed production sequence, and secure buyer sign-off before bulk cutting starts.
- 6Pull and verify shipment samples
Draw samples from early bulk output and compare against the approved PP sample before authorising shipment.
Key metrics (indicative targets)
| Metric | Working target | Why it matters |
|---|---|---|
| Sample approval cycle time | Indicative: within an agreed number of days per round | Slow sample turnaround directly delays the production start date. |
| Comment closure rate per round | Indicative: 90%+ of comments closed before next submission | Carrying open comments forward signals unresolved root causes and risks repeat rejections. |
| Number of fit rounds to approval | Indicative: 2-3 rounds for a standard style | Excessive rounds indicate weak upstream pattern or fit work and consume calendar time. |
| PP sample approval rate | Indicative: 85%+ approved on first submission | PP rejection this late in the process risks delaying bulk cutting. |
| Shipment sample match to PP | Indicative: 100% key measurement and construction match | Mismatch signals the bulk line has drifted from the approved reference. |
Targets are indicative working ranges, not standard or legal limits.
Control points to check and sign off
- Each sample stage is measured against the current approved spec sheet, not an earlier version.
- Comment sheets are documented and tracked to closure across rounds.
- PP sample uses bulk-approved fabric and trims, not substitute materials.
- Buyer sign-off on the PP sample is obtained and recorded before bulk cutting begins.
- Shipment samples are physically compared against the retained PP sample, not against the tech pack alone.
Common pitfalls and their consequences
- Approving a PP sample made with substitute fabric or trims, leaving the bulk line to face a different material behaviour.
- Losing track of open comments across rounds, so the same fit issue reappears in a later sample.
- Skipping size-set sampling and assuming the graded pattern behaves correctly in physical form.
- Starting bulk cutting before PP sign-off is formally recorded, exposing the order to late rejection.
- Comparing shipment samples only to the tech pack instead of the physical PP sample, missing construction drift.
Main activities
- Brief interpretation and range planning
- Concept, silhouette and colour development
- Digital sampling and virtual fit sign-off
Quality risks
- Late approvals
Sustainability risks
- Sample courier footprint
AI opportunities
- Sample status prediction
Official sources
Learn the skills used at this stage
Free GarmentEd lessons with worked calculations, checklists and practice questions for the work described above.
Also relevant: Buyer Communication and Escalation, Enzyme, Stone and Bleach Effects, Fit Analysis and Correction, Outerwear and Jacket Academy, Pattern Grading, Patternmaking Foundations, Quality Planning and Control Plans.
Industry chapters that cover this stage
The GARMENT TECH Ed industry chapters whose lessons are applied here — each chapter has a reference page and a taught lesson you can read straight through.
- Chapter 21 · Sampling & Sample-Room TechnologyDesign & DevelopmentRead the chapter lesson
- Chapter 18 · Pattern Making & Pattern EngineeringDesign & DevelopmentRead the chapter lesson
- Chapter 1 · Market Intelligence & Consumer InsightsDigital & AIRead the chapter lesson
- Chapter 13 · Fabric Finishing TechnologyMaterials & TextilesRead the chapter lesson
- Chapter 20 · Body Scanning & Fit TechnologyDesign & DevelopmentRead the chapter lesson
- Chapter 26 · Denim Wash & Finishing TechnologyManufacturingRead the chapter lesson
- Chapter 28 · Quality Management SystemsQuality & ComplianceRead the chapter lesson
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Questions about this stage
Ask about stage 12, Sampling. No account needed — questions are published once reviewed, with the answer alongside them.
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