Manufacturing Guide · 16 May 2026
The Complete Guide to Knitwear Sampling: From Tech Pack to Finished Sample
Everything you need to know about the knitwear sampling process, from creating a tech pack to approving the final sample.
By Felix Zheng
The sampling stage is where your design comes to life. For knitwear, this process is particularly nuanced because fabric structure and garment shape are created simultaneously during the knitting process, unlike woven garments where fabric is cut and sewn. This guide walks through the complete sampling process from tech pack to final approval.
Step 1: Preparing Your Tech Pack
A good tech pack should include:
- Flat sketch with front and back views
- Measurements in a size specification sheet
- Yarn specifications (fiber content, yarn count, twist)
- Stitch details (jersey, rib, cable, jacquard)
- Color references (PANTONE codes preferred)
- Trim details (buttons, zippers, labels)
- Packaging requirements
The more details you provide, the fewer sampling rounds you’ll need.
Step 2: Yarn Selection
Your choice of yarn dramatically affects the final garment. Consider:
| Factor | Impact |
|---|---|
| Fiber content | Hand feel, care requirements, cost |
| Yarn count | Fabric weight and drape |
| Twist | Durability and stitch definition |
| Dye method | Color consistency, minimum dye lots |
We maintain relationships with major yarn suppliers to source the right material for your design.
Step 3: Gauge Selection
Gauge determines the fineness of your knit:
- 3GG-5GG: Chunky, quick-knit pieces with visible stitch texture
- 7GG-9GG: Mid-weight, versatile for most sweater styles
- 12GG-14GG: Fine knit, suitable for lightweight tops and layering pieces
Your gauge choice affects production time, yarn consumption, and final garment weight.
Step 4: Sample Development (7-10 Days)
Once the tech pack is finalized, here is what happens:
- Pattern programming: Your design is converted into machine instructions
- Yarn preparation: Selected yarn is prepared and tested
- Knitting: The garment pieces are knitted on computerized machines
- Linking: Pieces are joined together using specialized linking machines
- Finishing: Washing, steaming, pressing to achieve final dimensions
- Quality check: Inspection against your tech pack specifications
Step 5: Sample Review
Check these key points when reviewing your sample:
- Fit
- Does it match the spec sheet measurements?
- Hand feel
- Does the fabric feel as expected?
- Stitch quality
- Consistent tension, no dropped stitches
- Color
- Matches your PANTONE reference
- Finish
- Clean seams, proper edge finishing
Step 6: Revisions and Approval
Most collections require 1-2 rounds of sampling revisions. Common adjustments include:
- Fit modifications (sleeve length, body length)
- Tension adjustments (fabric too loose or tight)
- Color corrections
- Trim changes
Sampling Timeline Summary
| Stage | Duration |
|---|---|
| Tech pack preparation | 1-3 days |
| Yarn sourcing | 2-5 days |
| Sample knitting & finishing | 7-10 days |
| Review & revisions | 3-5 days per round |
| Final approval | 1 day |
Total: approximately 2-3 weeks from design to approved sample.
Ready to start your sampling process? Contact our team to discuss your collection.
Work with JIERQI
Knitwear production in Shantou from 100 pieces per design. Sampling 7–10 days, AQL 2.5 inspection.