Cashmere Yarn Sourcing for Brands: Grades, Microns, and Traceability Checklist

At WFS Cashmere, yarn sourcing is where quality begins. I’ve visited cashmere auctions in Ulaanbaatar, toured dehairing facilities in Inner Mongolia, and tested yarn from dozens of mills. This guide shares what I’ve learned about sourcing cashmere yarn that meets your brand standards and customer expectations.

The Quick Answer

Source cashmere yarn by evaluating four critical factors: (1) Fiber origin (Mongolian cashmere averages 15.0–15.5 microns; Chinese Inner Mongolian 15.5–16.0; other regions vary), (2) Micron grade (14–15 microns for luxury, 15–16.5 for premium, 16.5+ for commercial), (3) Yarn construction (2/26NM–2/28NM standard, ply and twist level affecting handfeel and durability), and (4) Traceability (herder cooperative documentation, chain of custody, RWS or similar certification). Always request fiber test reports and mill certifications before committing to bulk orders.

Factor 1: Understanding Cashmere Origins

Mongolian Cashmere

Mongolia produces the world’s finest cashmere, accounting for approximately 40% of global supply.

Characteristics:

• Fiber diameter: 14.5–16.0 microns average

• Fiber length: 36–42mm

• Color: Natural white, brown, gray

• Annual production: ~9,000 tons

Why it’s premium: Harsh winters (-40°C) produce finer undercoat fibers. Traditional herding maintains fiber quality.

Sourcing channels:

• Mongolian Cashmere Association auctions

• Herder cooperatives (direct relationships)

• Processors with Mongolian sourcing divisions

At WFS Cashmere: We source directly from Mongolian herding cooperatives with whom we maintain 10+ year relationships.

Chinese Cashmere (Inner Mongolia)

Inner Mongolia Autonomous Region produces cashmere nearly equal in quality to Mongolian.

Characteristics:

• Fiber diameter: 15.0–16.5 microns

• Fiber length: 34–38mm

• Production volume: ~10,000+ tons annually

• Key regions: Alxa (Alashan), Ordos, Xilingol

Alashan region specifically: Produces fiber comparable to Mongolian (15.0–15.5 microns), often blended with Mongolian for premium yarns.

Sourcing considerations:

• Larger scale than Mongolia

• More consistent supply

• Wider quality range (verify source region)

Other Origins

Red flag: Yarn labeled “cashmere” without origin specification often blends lower-grade fibers.

Factor 2: Micron Grades and Specifications

Micron Count Explained

One micron = one-millionth of a meter. Human hair averages 50–70 microns. Cashmere must be <19 microns to qualify as cashmere per Cashmere and Camel Hair Manufacturers Institute (CCMI) standards.

Grade Classifications

Testing method: Optical fiber diameter analyzer (OFDA) per IWTO-47 standard.

Micron Distribution

Single micron average isn’t enough. Quality yarn specifies:

• Mean fiber diameter (MFD)

• Standard deviation (SD)

• Coefficient of variation (CV)

Example specification:

• MFD: 15.5 microns

• SD: 3.8 microns

• CV: 24.5%

Lower SD and CV indicate more consistent fiber quality.

Factor 3: Yarn Construction Specifications

Yarn Count (Metric Number)

Cashmere yarn uses metric count: NM (Number Metric). 1NM = 1,000 meters per kilogram.

Reading the notation: “2/26NM” means 2-ply yarn, 26NM count. Total length = (26 × 1,000) ÷ 2 = 13,000 meters/kg.

Ply and Twist

Standard cashmere: 2-ply with moderate twist balances softness and durability.

Yarn Finishing

At WFS Cashmere: We primarily use semi-worsted spun yarn for optimal balance of handfeel and construction clarity.

Factor 4: Traceability and Certification

Why Traceability Matters

• Quality verification: Confirms fiber origin and grade

• Sustainability claims: Supports eco/ethical marketing

• Risk management: Prevents substitution with lower-grade fiber

• Regulatory compliance: Required for some markets

Traceability Documentation

Certifications to Request

Responsible Wool Standard (RWS):

• Animal welfare requirements

• Land management standards

• Chain of custody tracking

Good Cashmere Standard (GCS):

• Sustainable herding practices

• Herder livelihood support

• Environmental protection

Sustainable Fibre Alliance (SFA):

• Mongolian cashmere specific

• Grassland management

• Herder training programs

At WFS Cashmere: We offer RWS-certified cashmere and can source GCS or SFA-certified fiber upon request.

The Sourcing Process

Step 1: Define Specifications

Create a yarn specification sheet:

YARN SPECIFICATION
Fiber origin: Mongolian/Inner Mongolian
Micron range: 15.0–16.0 microns
Fiber length: >34mm
Yarn count: 2/26NM
Construction: 2-ply, semi-worsted
Color: Natural white (undyed base)
Quantity: 500kg annual requirement
Certification: RWS preferred

Step 2: Identify Suppliers

Yarn mill types:

• Integrated mills: Spin their own fiber (best traceability)

• Commission spinners: Process customer-supplied fiber

• Trading companies: Source from multiple mills

Evaluation criteria:

• Minimum order quantities

• Lead times

• Certification availability

• Quality consistency history

Step 3: Sample Evaluation

Request and test:

• Yarn samples: Knit test swatches

• Fiber test report: Verify micron and length

• Color consistency: Lab dips for dyed yarns

• Physical testing: Strength, evenness (Uster)

Step 4: Trial Order

Place small initial order (50–100kg) to verify:

• Quality matches samples

• Delivery timeline accuracy

• Documentation completeness

• Communication responsiveness

Step 5: Scale and Monitor

For ongoing supply:

• Establish quality agreements

• Schedule regular fiber testing

• Conduct periodic mill audits

• Build buffer inventory for continuity

Cost Factors

Yarn Pricing Components

Price Benchmarks (per kg, FOB)

Volume discounts: Typically 5–10% reduction at 1,000kg+, 10–15% at 5,000kg+.

Red Flags in Yarn Sourcing

1. No origin specification: “Imported cashmere” without country

2. Missing micron data: Claims “fine” without test reports

3. Price too low: <$80/kg for claimed premium grade

4. No dye lot control: Inconsistent color between batches

5. Short payment terms: Demands 100% advance without references

6. No certification: Claims sustainable/ethical without documentation

Conclusion

Cashmere yarn sourcing requires technical understanding and rigorous verification. Fiber origin, micron grade, yarn construction, and traceability documentation separate premium suppliers from commodity traders. Invest time in supplier qualification—it determines your product quality and brand reputation.

At WFS Cashmere, we maintain direct relationships with Mongolian herding cooperatives and certified spinning mills. We provide full traceability documentation, fiber test reports, and certification for every yarn lot.

Discuss your yarn requirements or request samples: Visit https://www.wfscashmere.com/ to connect with our sourcing team. We’ll review your specifications, provide yarn samples with full documentation, and develop a sourcing plan aligned with your quality and sustainability goals.