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Digital Pattern To Body Measurement Workflow SOP

Complete internal SOP covering the full workflow from Master Designer → Technical Designer → eCom Lead → Creative Designer. Includes tested prompt, examples, and instructions for when the eCom Lead is out of office.

Last Updated: June 3, 2026

Purpose

Eliminate sizing questions and errors permanently by converting raw digital pattern measurements into accurate, customer-ready body measurement size charts.

1. Goal

We will never have another sizing issue or customer question again. Every style we produce will have clean, accurate body measurements using our brand standards (Compression, Fitted, Loose, or Relaxed).

2. High-Level Workflow

  • Master Designer (Elena or Klara) → Creates all panels + final sew lines

  • Technical Designer (Stefan or backup) → Captures all digital measurements → Enters into MASTER | Digital Measurements List

  • eCom Lead (Patty or backup) → Reviews data → Runs the Claude prompt → Creates final body measurements in the MASTER | Body Measurements List

  • Creative Designer (Luka or backup) → Uses the Body Measurements List to create the official size chart graphic

  • eCom Lead → Final approval → Uploads to website/product

If the eCom Lead is OOO: Any trained team member can run steps 3 and 5 using this SOP.

3. Before & After Example

Before

4101-Digital Measurement - M Player Sleeveless Jersey - Flatback Mesh
  LENGTH CHEST WAIST WIDTH
SIZES FRONT BACK FRONT BACK FRONT BACK
YM 27.2133 in 28.0786 in 18.0773 in 18.0854 in 17.8043 in 17.808 in
YL 27.7294 in 28.7502 in 19.0679 in 19.0543 in 18.7572 in 18.7681 in
YXL 28.7186 in 29.663 in 20.029 in 20.038 in 19.7246 in 19.7201 in
AXS 29.7101 in 30.6716 in 21.0717 in 21.0432 in 20.7246 in 20.7337 in
AS 30.7283 in 31.6558 in 22.0387 in 22.0344 in 21.7246 in 21.7355 in
AM 31.7424 in 32.6565 in 23.052 in 23.0512 in 22.7283 in 22.731 in
AL 32.6743 in 33.6551 in 24.0631 in 24.0403 in 23.7011 in 23.7355 in
AXL 33.7535 in 34.7177 in 25.0157 in 25.033 in 24.7174 in 24.7391 in
A2XL 34.4959 in 35.4574 in 26.0035 in 26.0171 in 25.7029 in 25.7138 in
A3XL 35.283 in 36.2337 in 27.0149 in 27.0091 in 26.6848 in 26.7065 in
A4XL 36.0765 in 37.0145 in 27.9586 in 27.9891 in 27.6866 in 27.7011 in

After

STYLE: 4101-4105 – Men’s Pro Sleeveless Jersey
GENDER: Men’s
PRIMARY SPORT: Volleyball
CROSS-SPORT USAGE: Also suitable for Lacrosse, Baseball, and Soccer
MEN'S GAME JERSEYS (Sleeveless)

The measurements below are body measurements. Find your correct size in the chart below.

YOUTH SIZE CHEST (in.) JERSEY LENGTH (in.) ADULT SIZE

CHEST
(in.)

 JERSEY LENGTH (in.)
YM 34–36 27¼ AXS 42–44 29¾
YL 36–38 27¾ AS 44–46 30¾
YXL 38–40 28¾ AM 46–48 31¾
      AL 48–50 32¾
      AXL 50–52 33¾
      A2XL 52–54 34½
      A3XL 54–56 35¼
      A4XL 56–58 36

FIT GUIDANCE

FITTED

TIP! Our sleeveless jerseys are fitted. If the player is between sizes or prefers a loose fit, we recommend sizing up.

HOW TO MEASURE

  • CHEST: Measure around the fullest part of your chest, keeping the measuring tape horizontal.

  • JERSEY LENGTH: Measure from the highest point of the shoulder seam straight down to the hem.


WARNING
THESE ARE NOT GARMENT MEASUREMENTS. All measurements indicated are body measurements. Review the sizing chart and your order closely before submitting. Uniforms will begin production as soon as your order is placed and cannot be edited.

4. The Master Claude Prompt (Copy & Paste Ready)

You are a senior Technical Designer and Sizing Specialist at Signature Athletics. You strictly follow the Digital Pattern to Body Measurement Evaluation SOP v1.1.

Your task is to convert the raw digital pattern measurements below into a professional Body Measurement Size Chart while also performing a clear Quality Control (QC) check.

Follow these rules exactly:

- Always measure sew line to sew line.
- Apply the 5% Heat & Seam Reduction Factor to every measurement.
- Use only these fit types: Compression, Fitted, Loose, or Relaxed.
- Clearly state the fit using this format:
  **FIT GUIDANCE**
  **[Compression / Fitted / Loose / Relaxed]**
- Add one clear sentence explaining the fit recommendation.
- Determine the Primary Sport and recommend logical Cross-Sport usage.
- Output the size chart in a clean, combined Youth + Adult table format that matches our current published size charts.
- Include the Fit Guidance section, How to Measure, and Warning.

After generating the size chart, add a **QC & EXPLANATION SECTION** that includes:

1. A simple, step-by-step explanation of how you converted the digital measurements into body measurements (explain like you’re talking to a 7th grader).
2. Pass/Fail checks for the key validation points from the SOP.
3. If any check fails, include the relevant **Fail Code** using this format:
   - Tops: ERR-T##-XXX
   - Bottoms: ERR-B##-XXX
   - Bras: ERR-BR##-XXX
   (Example: ERR-B01-WBW = Bottoms Waistband Width validation failed)

Style to process:
[PASTE FULL DATA FROM MASTER | Digital Measurements List HERE]

Output format:
1. Clean, publication-ready size chart (for Creative Designer)
2. QC & Explanation Section with pass/fail results and fail codes if applicable (for Ecom Lead)

5. Step-by-Step Instructions

Step 1 – Technical Designer

Finish all sew lines and enter every measurement into the MASTER | Digital Measurements List  spreadsheet (correct tab & style).

Step 2 – Ecom Lead (or backup)

Step 3 – Creative Designer

Use the pattern tab in the Body Measurements List to create the official size chart graphic.

Step 4 – Ecom Lead Final Approval

Review the final graphic, confirm it matches the Claude output and brand standards, then upload to the website/product.

6. Quality Checklist (Before Handing Off)

  • All measurements are body measurements (not garment measurements)

  • Fit Type is selected from the dropdown (Compression / Fitted / Loose / Relaxed)

  • Cross-Sport Usage is entered

  • Workflow & QC Section is updated

  • Warning box and How to Measure section are present

  • Tables are clean and easy to read

7. IF THE ECOM LEAD IS OUT OF OFFICE

Any trained team member who has access to this SOP and both MASTER sheets (Digital Measurements List and Body Measurements List) can run Steps 2 and 4. Follow this article exactly.

8. Related Links & Files


Version History
  • v1.1 – June 4, 2026 – Major update including:
    • Added Relaxed as a 4th fit type
    • Updated Claude prompt
    • Added Master Index and Workflow & QC Section
    • Introduced separate templates for Tops, Bottoms, and Bras
    • Improved workflow tracking and accountability

  • v1.0 – June 3, 2026 – Initial release (tested and approved with style 4101)

 

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