Buyer resource
Underwear Size Specification Review
Review a measurement chart with point IDs, drawing references, size values, units, tolerances and an explicit measurement condition.
01
Define each measurement point
Give every point an ID and show the same ID on a technical drawing or annotated photo. State exactly where the measurement starts and ends. Distinguish flat width from circumference, and garment measurements from body measurements. A label such as waist is not sufficient if one person measures flat and another measures around the garment.
02
Make the method part of the specification
Record the unit and the agreed condition, such as laid flat without deliberate stretching. If an extended measurement is required, define that method separately with the technical team. Use consistent conditions when checking samples. Agree the measurement force, where applicable, and the tolerance for the specified elastic. The drawing, method and chart together establish what the number means.
03
Compare size values and agreed limits
The illustrative chart gives hypothetical S, M and L targets in centimeters. For POM01, M has a target of 34.0 and a demonstration tolerance of plus or minus 0.5, making the illustrative range 33.5 to 34.5. A recorded result of 34.7 would be outside that example range. The dimensions and tolerance are illustrative; use the approved size chart for your product.
04
Keep measurement approval separate from fit approval
A sample inside a measurement range may still need wearer-fit changes. Record those observations separately and update the chart when the buyer accepts a new target. Recheck grading across the agreed size range instead of assuming that every point changes by the same amount. Replace the example values with your approved dimensions and attach the missing measurement drawings before using the file as an order specification.
Common mistakes to avoid
- Doubling a flat measurement as if that were always the specified method.
- Mixing inches and centimeters without an explicit unit.
- Using example tolerances as default production limits.
Working example
Fictitious size-chart example, not production specifications
| Point ID | Measurement description | S cm | M cm | L cm | Example tolerance cm | Method reference |
|---|---|---|---|---|---|---|
| POM01 | Waist, flat width | 32.0 | 34.0 | 36.0 | +/- 0.5 | Drawing 01; relaxed |
| POM02 | Side length | 11.0 | 11.5 | 12.0 | +/- 0.3 | Drawing 02; laid flat |
| POM03 | Front rise | 23.0 | 24.0 | 25.0 | +/- 0.5 | Drawing 03; laid flat |
| POM04 | Leg opening, flat width | 20.0 | 21.0 | 22.0 | +/- 0.4 | Drawing 04; relaxed |
Project worksheet
Start with the Project brief, then complete the relevant product details. Email the workbook and available references to [email protected]. You can leave undecided items blank.
Use the completed worksheet alongside the product drawings, approved specification and agreed order requirements.
Useful information
Your working checklist
- 01Wearer and size range
- 02Measurement units
- 03Point-of-measure drawing
- 04Dimensions and tolerances
- 05Sample version
Frequently asked
Buyer questions
01Can I use the example dimensions for production?
They are illustrative values. Use your approved targets, tolerances and measurement drawings.
02Does this download include measurement diagrams?
No. It supplies the chart fields. Attach product-specific marked drawings so every point and method is unambiguous.
From preparation to development
Discuss the questions that remain open.
Use the guide to organize the information you have, then discuss your product and estimated bulk requirement with DALI. A complete worksheet or technical pack is not required for the first conversation.