Sampling Rounds Explained: Proto, Fit, Size Set and Pre-Production
Each sampling round answers a different question, and skipping one simply moves the problem later in the calendar.
This article sets out what the requirement involves, how to specify it and how to verify it before bulk production.
Proto sample
Confirms construction feasibility and general appearance before investing in refined materials.
The difference between a good and a poor result is usually decided long before the first bulk roll is cut.
Fit sample
Focuses on fit and measurement accuracy on the intended size, using near-production fabric.
Specify the value on the finished fabric rather than on greige, because finishing changes almost every parameter measured.
- Request test reports on production fabric, not on development samples
- Verify the sampling plan and the number of specimens
- Store reports with roll or lot identification for traceability
Size set
Verifies grading across the size range, revealing issues that a single-size sample cannot show.
Set an in-process check at the point where the parameter is created, not at final inspection where correction is expensive.
Pre-production sample
Made with production materials and methods, it becomes the quality reference for bulk.
Compare results before and after the intended care regime, since performance often changes after the first wash.
- Agree tolerances in writing before the first sample is made
- Define the measurement condition and the direction measured
- Review the limit each season against real performance data
Comment discipline
Written comments with photographs and measurements in a single document prevent contradictory instructions.
Keep a buffer in the schedule for one additional approval round, because most programmes use it.
Summary
The technical content is straightforward. The discipline lies in writing it down, testing it on production fabric and repeating the result on the next order.
