Sampling is expensive. Each round costs you fabric, factory time, shipping, and—the most expensive item of all—weeks on the calendar. Designers who run a disciplined fit process get to production in two or three rounds. Designers who don't can burn through five or six and still ship a garment that doesn't quite fit.
The difference isn't talent. It's process.
Round 1: The Proto
The first sample is a proto, also called a development sample. Its job is to validate the basic construction, balance, and silhouette of the garment. Don't expect it to fit. Expect to learn things from it.
For a proto, you typically use a mid-grade fabric similar to the production fabric (or the production fabric if you have it). Don't waste real fabric on a sample that's going to need significant correction. Check seam construction, panel proportions, closure function, and the overall hand of the garment.
Round 2: The Fit Sample
Once construction is solid, the fit sample puts the garment on a real body and tells you whether the proportions actually work. This is where most of the iteration happens.
A few rules for fit samples:
- Use a real fit model, not a mannequin. A dress form has no shoulders, no movement, and no opinions. A person does.
- Pick a model that matches your target customer's measurements. If your sample size is M, the model needs to actually be a true M—not a 5'10" sample size used for runway.
- Have the patternmaker present (or on video). Watching the garment move is information that doesn't come through in photos.
- Document everything in writing immediately. Memory is unreliable; fit notes are not.
Writing a Fit Note That Gets Acted On
A bad fit note says "the chest is too tight." A good fit note says: "Chest is binding 1/2 inch on either side at the bust apex; reduce ease 1 inch total at chest, blend through underarm to existing waist measurement."
The difference is that the second one is actionable. The patternmaker doesn't have to guess what you mean—they can implement the change immediately and confidently. Fit notes that are vague produce another round of revision instead of a fix.
Good fit notes include:
- The exact location of the issue (point of measure or photo callout)
- The amount of change needed in inches or centimeters
- How the change should blend into adjacent areas
- Photos of the issue from multiple angles
- Whether it's a critical fix or a "nice to have"
Round 3: The Pre-Production Sample
Round three should ideally be the production-fabric, production-trim, production-grade sample. By now the fit is dialed in and you're verifying that the production fabric behaves the same way the sample fabric did (it usually doesn't, exactly), and that the trims, labels, and packaging all work together.
If you're still making fit changes at round three, the earlier rounds didn't do their job. Stop and figure out why before you proceed.
The Discipline That Saves Money
- Batch your changes. Don't fix one thing at a time across multiple rounds. Make all the corrections together.
- Don't skip the fit session. Approving a sample from photos alone is a recipe for surprises in production.
- Trust your patternmaker. If they're saying the issue is in the fabric, not the pattern, they're probably right.
- Set a budget for sample rounds and stick to it. If you're past round 4, something fundamental needs to change.
"Every extra sample round is a tax on a process that wasn't tight enough the round before."
Bottom Line
The best designers I've worked with run their sample process like a project, not a guessing game. They write tight fit notes, they trust their patternmaker, and they get to production in two or three rounds—reliably, on every style.
Want help running a tighter development cycle? Get in touch and let's talk about your line.
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