Clothing sampling usually runs in three stages: a proto sample to check the idea and construction, one or more fit samples to perfect the fit on a body, and a pre-production sample in the final fabric and trims that becomes the standard for production. Clear comments after each round, written back into the pattern and tech pack, are what keep the number of rounds low.
Key points
- Each sample round has one job: proto checks the idea, fit checks the body, pre-production checks everything.
- Try samples on a real body that matches your base size, not only on a hanger.
- Write comments with measurements and photos, not impressions.
- Every approved change goes back into the pattern and tech pack.
- The sealed pre-production sample is the reference for checking your whole order.
Why sampling matters
A sample is the cheapest place to find a problem. A neckline that gapes, a fabric that stretches too much or a seam that puckers costs one garment to fix at sample stage and an entire order to fix later.
Sampling is also where you learn how your manufacturer works: how they read your brief, how they explain changes and how quickly they respond.
1. Proto sample
The proto is the first version of your design, sewn from the first pattern. It is often made in a similar fabric rather than the final one, so you can judge the shape, proportions and construction without waiting for bulk fabric.
Look at the overall silhouette and details. Is it the garment you imagined? Are the pocket positions, lengths and closures right?
2. Fit sample
The fit sample is about the body. It is tried on a fit model or a dress form in your base size, measured against the size chart and corrected in the pattern. Most styles need one or two fit rounds; complex tailoring or stretch fabrics may need more.
Check how the garment moves: sit, raise your arms, walk. A garment that looks perfect standing still can pull or ride up in use.
- Measure every point of measure and compare with the chart
- Photograph front, back and side on the body
- Note what to change in centimetres, not words like slightly
- Check comfort and movement, not only the look
3. Size set
Once the base size fits, the pattern is graded across your size range. For important styles or wide size ranges, a size set lets you check that the smallest and largest sizes keep the proportions of the base size.
4. Pre-production sample
The pre-production sample is made in the final fabric, colour and trims, with your labels, exactly as the order will be produced. When you approve it, it is sealed and kept as the standard.
Quality checks during production and the final inspection compare finished garments with this sample, so take your time approving it.
How to keep sample rounds to a minimum
Fewer rounds mean a faster launch and lower development cost. These habits help most.
- Start with a complete brief or tech pack, including fabric references
- Approve fabric before the fit sample, so the fit is judged in the right material
- Use one fit model or form consistently
- Consolidate all comments into one list per round
- Make sure your manufacturer updates the pattern and tech pack after each round

How to give sample comments that work
Good comments are specific, measurable and complete in one go. Send them in writing with photos, list every change with its position and amount, and say what must stay exactly as it is.
Avoid adding new design ideas at fit stage. Each new idea starts the sampling clock again.