Custom Fabric Knitting & Dyeing
Custom weaving, circular knitting, and piece dyeing for organic cotton, French terry, performance nylon/spandex blends, recycled polyester, and merino wool.
Industry Vertical · Textile & Apparel Manufacturing
Textile, Apparel & Technical Garment Sourcing
Textile and apparel sourcing connects American fashion labels, sportswear brands, and uniform suppliers with specialized knitting, weaving, dyeing, and garment assembly factories overseas. It manages fabric yarn selection, custom dye lot matching (lab dips), tech pack grading, prototype sampling, FTC fiber labeling compliance, and mass garment production to deliver consistent fit and handfeel.
Textile manufacturing has the narrowest margin for error of any consumer goods category. Minor variations in fabric GSM (grams per square meter), shrinkage rates, dye lot batching, or seam stitching destroy consumer fit and trigger massive retail returns. Sourcing Lab USA delivers rigorous garment tech pack execution and on-site fabric inspection.
Share your project briefDESIGNED AROUND THE PRODUCT
Fabric-first garment procurement across premier textile hubs.
Garment quality is decided at the fabric mill, not at the cutting table. We source fabrics directly from specialized textile hubs in Zhejiang (Shaoxing Keqiao), Jiangsu, and Guangdong, verifying fabric composition, colorfastness, tensile strength, and shrinkage before cut-and-sew operations commence.
Sportswear & Performance Technical Apparel
Moisture-wicking, four-way stretch, anti-microbial treatments, laser-cut ventilation, flatlock stitching, and heat-bonded taped seams for athletic apparel.
Tech Pack Execution & Pattern Grading
Translating design sketches into production-ready tech packs with graded size charts (XS to 3XL), measurement tolerance tables, and construction diagrams.
Branding Trims, Hardware & Hang Tags
Custom branded YKK zippers, embossed metal aglets, high-density silicone heat transfers, woven damask neck labels, and FSC-certified retail hang tags.
Product briefs we review
Clothing, uniforms and sportswear.
Material, construction, print method, and branding are confirmed against your brief before anything goes into production.
Textile
Clothing & uniforms
- Fabric & construction
- Measurements & sizes
- Branding & labels
Textile
Sportswear
- Activity & fit
- Fabric & stretch
- Size-set samples
Textile
Technical apparel
- Intended use
- Required properties
- Evidence to confirm
A DOCUMENTED PROCESS
The complete apparel production lifecycle.
- 01
Tech Pack & Fabric Mill Alignment
We review your tech pack specifications, source candidate fabric swatches, and negotiate yarn spinning and knitting parameters with primary textile mills.
- 02
Lab Dips & Pre-Production Proto Samples
The factory submits Pantone lab dips (color swatches under D65 light) and constructs a complete prototype garment for fit and construction approval.
- 03
Size-Set & Pre-Production (PP) Approval
Full size sets are sewn across all sizes to verify grading accuracy, followed by formal Pre-Production (PP) golden sample sign-off.
- 04
Bulk Cutting, Sewing & In-Line QC
Fabric rolls are rested to prevent post-cutting shrinkage. Continuous in-line QC monitors seam strength, stitch tension (SPI), and print placement.
- 05
AQL Garment Inspection & Packing
Where the specification requires it, finished garments undergo metal detector needle checks, measurement tolerance audits, steam finishing, individual polybagging, and master carton packing.
- Minimum order quantity (MOQ)
- From 300 to 500 pcs/style
- Driven by custom fabric knitting and minimum commercial dye vat capacities.
- Lab dips & fit sample
- 10 to 14 days
- Includes physical color swatch submission and initial fit garment prototype.
- Bulk cut-and-sew production
- 35 to 50 days
- Following Pre-Production (PP) sample and trim component approval.
All garments undergo mandatory needle-detector safety screening and ASTM wash shrinkage testing prior to export packing.
Review the product specifications, sample requirements, quantities, product pricing and payment terms before approving your order. Delivery and import responsibilities are agreed for each project. See how product supply and order terms work. Use the supplier evidence matrix and quality checkpoint worksheet to prepare the questions for your order.
RELATED RESOURCES
Resources for your sourcing brief.
Custom Clothing & Textiles
Our established clothing and apparel procurement framework.
Sportswear & Technical Apparel
Performance fabrics, fit engineering, and activewear manufacturing.
Product Sourcing Overview
Direct overseas factory procurement and manufacturing execution.
Quality Control & Inspections
Textile inspections, needle detection, and size-set audits.
QUESTIONS, ANSWERED
Questions about textile & apparel manufacturing sourcing.
What is a tech pack and why is it necessary for clothing manufacturing?
A tech pack (technical package) is the architectural blueprint for a garment. It contains flat technical sketches, detailed measurement charts with tolerance limits (+/- 0.5 cm), fabric specifications (composition, yarn count, GSM), stitch instructions (SPI), colorways, and trim details. Without a tech pack, factories will guess dimensions, resulting in inconsistent sizing.
What are lab dips in textile sourcing?
Lab dips are small fabric swatches (typically 2x2 inches) dyed by the fabric mill to match your specified Pantone Textile (TCX/TPX) color codes under standardized light boxes (D65 daylight, CWF store light). You inspect and approve these before the mill dyes bulk fabric rolls.
What legal labels are mandatory on clothing imported into the United States?
Under FTC regulations, apparel sold in the U.S. must have a permanent label stating: (1) Fiber content percentages in descending order, (2) Country of Origin ("Made in China"), (3) RN or WPL number (or company legal name), and (4) Care instructions in accordance with the Care Labeling Rule.
How do you prevent fabric shrinkage and color bleeding in bulk production?
We mandate pre-shrinking processes (such as sanforization or compacting) at the fabric mill and conduct AATCC wash testing for colorfastness to washing and perspiration before bulk cutting begins.
Start with your brief
Submit your apparel sourcing brief.
Send your tech packs, reference garments, and volume projections. We will evaluate fabric sourcing and provide direct factory manufacturing options.
- 01
We read the brief
We confirm what can be quoted and sampled for your product.
- 02
We reply by email
With the missing information we need, or the next step for the project.
- 03
You get concrete options
Supplier options, pricing, sampling, and production timing for your review.
Or contact us directly