Every bulk production problem — wrong measurements, off-shade fabric, a logo in the wrong place — was once a sampling problem that slipped through. The sampling process exists to catch these issues when fixing them costs almost nothing. Here are the five standard stages and what each one is for.
1. Proto sample: proving the concept
The proto is the first physical version of your design, often made in a substitute fabric. Its job is to confirm the concept: silhouette, key design lines, trim placement. Do not judge fit or fabric at this stage — judge whether the idea works in three dimensions.
2. Fit sample: nailing measurements
Made in the correct fabric, the fit sample is evaluated on a live model or dress form against your spec sheet. Check every measurement, the drape, and how the garment moves. Fit comments go back to the factory, which revises the pattern — expect two to three rounds for complex garments.
3. Size set: checking the grade
Once the base size fits, the factory grades the pattern up and down and produces one piece per size. The size set verifies that grading is proportional — a common failure is armholes or rises that distort at extreme sizes. Approve the full size range, not just the middle sizes.
4. Salesman sample: selling the line
Salesman samples represent the finished product for photography, trade shows and buyer presentations. They should carry correct labels, hangtags and packaging — this is your last chance to spot branding errors before bulk.
5. Pre-production sample: the bulk blueprint
The PP sample is made from actual bulk fabric and trims on the production line. Your written approval of the PP sample is the green light for bulk — and the reference standard that final inspection is judged against. Never skip it, and never approve it casually.
Timelines and practical tips
Allow one to two weeks per sample round including shipping time. Consolidate your comments into a single clear revision list each round rather than sending piecemeal feedback. Brands that sample disciplinedly almost never face bulk surprises; brands that rush sampling pay for it in chargebacks and rework.