Pure wool fabric

To ensure authenticity, you should request a Burn Test report or a Third-Party Fiber Content Analysis (such as SGS or Intertek). Pure wool should smell like burning hair and leave a brittle, black ash that crushes easily. Additionally, look for the Woolmark certification, which is the global authority for wool quality assurance, ensuring the product meets rigorous standards for fiber content and performance.

Key metrics include Super S numbers (e.g., Super 100s to 180s), which indicate the fineness of the wool fibers; higher numbers signify softer, lighter, and more expensive fabric. You must also specify the fabric weight (GSM - Grams per Square Meter)—typically 250-300 GSM for year-round suits and 400+ GSM for overcoats. Don't forget to check the pilling resistance grade (aim for Grade 4-5) and colorfastness to dry cleaning.

For the US market, compliance with the Wool Products Labeling Act is mandatory, requiring accurate fiber percentage disclosures. For the EU, ensure the dyes used comply with REACH regulations regarding harmful chemicals. If your brand focuses on sustainability, prioritize suppliers who provide RWS (Responsible Wool Standard) certification, which guarantees animal welfare and land management practices.

Worsted wool is combed to remove short fibers, resulting in a smooth, durable finish ideal for professional business suits. In contrast, Woolen (or Tweed) fabric is bulkier and fuzzier, making it perfect for casual jackets and winter outerwear due to its superior heat retention. Ensure the supplier specifies the yarn count (e.g., 2/80nm) to match your specific garment design needs.

The primary risk is fiber substitution, where wool is blended with polyester or viscose without disclosure. To mitigate this, use Trade Assurance services on Made-in-China.com to secure your payment. Always insist on a Pre-Shipment Inspection (PSI) to verify that the bulk production matches the approved Golden Sample in terms of hand-feel, weight, and color shade.

Wool prices are sensitive to raw material auctions (e.g., Australian Wool Exchange). Negotiate based on current market indices and ask for tiered pricing. For custom colors, the Minimum Order Quantity (MOQ) is usually higher (e.g., 500m+); however, you can negotiate lower MOQs by choosing ready-to-ship (RTS) colors from the supplier's stock service, which also reduces lead times.

Wool is highly susceptible to moisture and moths. Ensure the supplier uses vacuum-sealed plastic inner packaging and sturdy, moisture-proof outer cartons. For shipping to humid climates, request silica gel desiccant packets inside the rolls. For high-Super-S fabrics, air freight is recommended to prevent long-term compression wrinkles that can occur during sea freight.

Establish a Defect Allowance Standard (e.g., no more than 3 defects per 100 meters) before signing the contract. If defects are found, provide high-resolution photos and videos showing the fabric on an inspection machine. Professional suppliers on Made-in-China.com typically offer a pro-rata refund or replacement for yardage that exceeds the agreed defect threshold.