Proto, Fit, Size Set, PP: Activewear Sample Types Explained
Most first-time buyers think “the sample” is one object that gradually gets better. Factories think in sample types — each with a different job, a different acceptable quality, and a different question it exists to answer. When a buyer approves a photo sample as if it were a PP sample, or judges a proto’s fabric as if it were bulk, the project pays for the confusion later.
We covered the overall sampling timeline here. This article is the missing dictionary: what each sample type is for, and exactly what you should (and should not) approve at each one.
The sample ladder
| Sample type | Its one job | Judge this | Ignore this |
|---|---|---|---|
| Proto (development) | Prove the construction works | Silhouette, seam placement, feasibility | Fabric, color, fit precision |
| Fit sample | Prove the measurements on a body | Fit in motion, rise, band behavior | Color, trims, packaging |
| Size set | Prove the grading, not just one size | Fit across XS–XL (or your range) | Anything already locked |
| Photo / salesman | Look right on camera | Visual styling only | Everything technical |
| PP (pre-production) | Be the contract | Everything: bulk fabric, color, trims, labels, packaging | Nothing — this is the last exit |
| TOP (top of production) | Prove bulk matches the contract | First bulk pieces vs sealed PP | — |
Where projects actually go wrong
Approving fit on the wrong fabric. A fit sample in a substitute fabric answers the geometry question, not the feel question. If hand feel and recovery matter to your product — in activewear they always do — the fabric decision needs its own approval before the PP stage, not a surprise inside it.
Skipping the size set. One beautiful size M proves nothing about your XS or your 2XL. Grading is engineering, not photocopying — bust-to-band ratios, rise curves and strap positions do not scale linearly. If your range sells more than three sizes, a size set round is cheaper than a warehouse of returns.
Treating the photo sample as technical approval. It photographs well. That is its entire job. Approving production details from it is how “the sample looked perfect” ends up in a dispute email.
Rushing past the PP. The PP sample made from bulk fabric, bulk trims and final labels is the standard your production is measured against — at YOUMEGA it becomes the sealed sample both sides sign, and final inspection (AQL 2.5) checks bulk against that seal, not against memory. A vague PP approval means there is no contract to enforce later. This is the single highest-leverage 48 hours in your whole order.
How this maps to YOUMEGA’s routes
- Stock styles + your logo: the ladder compresses — the stock block is already proven, so your first sample (about 7 days) functions as a fit-plus-PP check with your logo and colors applied. One approval, then bulk.
- Full custom (from 300–500 pcs per style per color): expect the full ladder — first sample in 12–15 days, typically two fit rounds, then size set where the range justifies it, then a true PP before bulk. Our case files show the pattern: fix silhouette first, then fabric behavior, then brand finish — in that order, never all at once.
The discipline is not bureaucracy. Every sample type exists because some brand, somewhere, paid for skipping it.
FAQ
How many sample rounds should I budget for? Stock + logo: usually one. Full custom: two fit rounds is normal, plus a PP. More than three fit rounds usually means the brief is still moving — fix the brief, not the sample.
What’s the difference between a PP sample and a sealed sample? The PP is the garment; the sealed sample is that garment after both sides sign it as the production standard. Same object, upgraded authority.
Do I need a size set for a 3-size range? For S–L in a proven block, often no. For anything wider, for bras, or for a new block — yes. Grading failures are the most expensive ones to discover after bulk.
Can I skip the proto if I have a tech pack? A complete tech pack can collapse proto and fit into one round — that is its economic point. No tech pack, no shortcut.
What should I physically check on a PP sample? Bulk fabric hand feel and recovery, color against the approved lab dip, every trim, every label, packaging, and measurements against the spec — then keep your sealed duplicate. When bulk arrives, compare against it.
Send us your reference garment or tech pack and we will tell you which sample ladder your project actually needs — quote within 24 hours on weekdays, first stock sample in about 7 days.
