Direct answer
A plus-size compression sock sample should be approved only after size measurements, pressure results, wide-calf wear trials, construction details and packaging information all match the signed specification.
Key Takeaways
- Use one signed specification as the source of truth.
- Measure every sample size.
- Combine lab data with wide-calf wear trials.
- Freeze packaging only after product approval.
Prepare the sample brief
Give the factory target measurements, pressure level, yarn blend, colors, artwork, packaging and test requirements before knitting begins. Reference samples alone are not a complete specification.
Assign a version number so comments and revised samples cannot be confused.
- Size and calf matrix.
- Pressure specification.
- Construction and material list.
- Color and artwork references.
Measure the physical sample
Check foot length, leg length, ankle, calf, top opening and weight using the agreed method. Record relaxed and practical-stretch values where relevant.
Compare sizes as a set to make sure grading progresses logically rather than reviewing each one in isolation.
- Flat measurements.
- Stretch measurements.
- Size-to-size grading.
- Left-right consistency.
Validate performance and wear
Review pressure reports, then conduct wear trials at the lower and upper ends of each calf range. Check donning, cuff marks, slippage, bunching, toe comfort and recovery after washing.
Log every issue with a photo and an objective correction request.
- Pressure evidence.
- Target-user fitting.
- Wash and recovery.
- Durability checkpoints.
Approve a sealed reference
Once the product passes, sign and retain a final sample that bulk production must match. Lock its yarns, colors, measurements, labels and pack configuration.
Bulk inspection should compare goods to this sealed reference and the same approved specification.
- Signed approval sample.
- Final bill of materials.
- Approved packaging files.
- Bulk tolerance table.
Buyer questions
Frequently Asked Questions
How many samples are needed?
The number depends on range complexity, but every size and meaningful material or construction variation should be represented before approval.
Is a photo enough for sample approval?
No. Physical measurements, pressure evidence, material details and wear evaluation cannot be confirmed reliably from a photo alone.
When should packaging be printed?
After product size, pressure, composition and care information are finalized, so packaging does not preserve outdated specifications.