JX Apparel Group
JX Apparel Group
18.75 microns is the maximum mean fiber diameter IWTO allows a worsted cloth to carry the Super 100s label — the number that separates genuine luxury wool from a marketing adjective, inside a global wool market worth $44.20B in 2026, 46.8% of it in Asia-Pacific.
Small fashion brands sourcing wool coats from China are buying into a category with real published standards — but also into spec ranges no primary body measures at all, like GSM by coat style. This guide aggregates 46 verified data points from IWTO, USDA-AMS, ISO, ASTM, AATCC, Textile Exchange, Mordor Intelligence, and cross-verified fabric-trade consensus, organized around the questions a buyer actually needs answered before placing a first order.
Wool quality is a single measured number: mean fiber diameter in microns, plus how tightly it varies. IWTO's Super S system caps it precisely — Super 100s cloth cannot exceed 18.75 microns, and each 10-Super step removes half a micron, so Super 150s tops out at 16.25. The USDA grades on the same basis, defining 16 grades by average diameter and maximum standard deviation. For a small brand, the takeaway is blunt: a supplier quoting "premium merino" without a micron figure is quoting nothing. Ask for the micron and the coefficient of variation, not the adjective.
| Metric | Value | Source |
|---|---|---|
| Super 100s worsted — max mean fiber diameter | 18.75 microns | IWTO, Fabric Labelling Code of Practice |
| Super 150s worsted — max mean fiber diameter | 16.25 microns | IWTO, Fabric Labelling Code of Practice |
| USDA wool grading basis (grade 64's example) | Average fiber diameter + max standard deviation; 64's = 20.60-22.04 microns | USDA-AMS, United States Standards for Grades of Wool |
| Merino fiber-diameter band | 15-24 microns (superfine <15, fine <19.5); lambswool ~24-30, Shetland ~20-28 | Pendleton, Types of wool explained |
| Prickle / skin-comfort threshold | ~30 microns (fabric feels prickly once ~5%+ of fibers exceed 30 microns) | CSIRO (Naylor), Comfort Factor research |
| Typical staple length, superior/apparel-grade wool | 65-75 mm (apparel wool broadly 60-90 mm) | Wikipedia, Staple length grading |
Merino/lambswool/Shetland bands are approximate — lambswool is defined by first-shearing age (roughly 6-7 months), not micron, and Shetland fleece is heterogeneous. Treat them as directional, not spec-grade.
Buyers evaluating fabric for a first order can review Jinxu's collection of wool and cashmere outerwear for the fiber grades currently in production.
No standards body publishes a GSM-by-coat-style table, so every number here is trade consensus — but the consensus is consistent enough to plan against. Lightweight topcoats live near 300 GSM; a true sub-freezing winter coat needs roughly 400 GSM or more; dense melton overcoats run 600-800. The tailoring trade cross-checks this in ounces per linear yard: topcoats 17-19 oz, overcoats 20+. Blend ratio is the other lever — mainstream wool-blend coats run 60-80% wool, and any cashmere below roughly 30% is closer to marketing than to a performance ingredient. Specify the GSM and the exact composition in the tech pack; leaving it to the mill invites a lighter, cheaper cloth.
| Metric | Value | Source |
|---|---|---|
| Wool coat fabric weight — full practical span | 300 GSM (lightweight) to 700+ GSM (heavyweight winter/melton 600-800) | Bradic, GSM explained |
| Melton wool coating weight (sources vary) | 500-800 GSM (dense melton ~600-800) | Fabriclore, Melton wool fabric |
| Tailoring-trade cloth weight ladder | Topcoats 17-19 oz/yd; overcoats 20+ oz/yd; tropical suiting 6.5-10 oz/yd | Articles of Style, A guide to fabric weights |
| Tropical-weight wool oz/yd-to-GSM conversion reference | 7.5-10 oz/yd = 230-310 GSM | Threads Magazine, Sew with Tropical Wool Suiting |
| Mainstream wool-blend coat wool content | 60-80% wool (balance polyester/viscose/nylon) | Coat Check Room, How much wool should a coat have |
GSM-by-style bands and the cashmere-share threshold carry a "directional / sources vary" qualifier — no primary or standards body publishes GSM-by-coat-style figures. Real-world commercial blends often show token cashmere at 5-10% (e.g. 70% wool / 25% nylon / 5% cashmere), which is why a low cashmere share is a buyer caution, not a rule.
Wool fails in predictable ways, and each has a named test. Pilling is measured by the ISO 12945-2:2020 modified Martindale method at 9 kPa, rated on a 1-5 scale across cycle intervals up to 7,200; buyers typically accept grade 3-4 and demand 4 for premium. ASTM D4970 is the US equivalent. Shrinkage has two acts — reversible relaxation (roughly 3-5% for worsted wovens) and permanent felting (15-20%, occasionally 25%) when scales interlock under heat and agitation — measured by ISO 6330, ISO 5077, or AATCC 135. The numbers a mill should never hide are the test method and the acceptance grade. A factory running a documented 5-stage inline QC process catches pilling and dimensional faults at first-piece and post-finishing stages, not after the container ships.
| Metric | Value | Source |
|---|---|---|
| Pilling test method | ISO 12945-2:2020 (modified Martindale); ASTM D4970 US equivalent | ISO 12945-2:2020 |
| Modified Martindale pilling test loading pressure | 9 kPa (apparel-weight fabrics) | ISO 12945-2:2020 |
| Pilling test rub-cycle inspection intervals | 125 / 500 / 1,000 / 2,000 / up to 7,200 cycles | ISO 12945-2:2020 |
| Abrasion resistance test method | ISO 12947-2 (Martindale, cycles to breakdown) | ISO 12947-2 |
| Dimensional-change (shrinkage) test standards | ISO 6330, ISO 5077, AATCC 135, AATCC 150, GB/T 8629 | AATCC Test Methods |
| Pilling grade acceptance threshold (buyer convention) | Grade >=3-4 acceptable, premium >=4 (1-5 scale) | Chiuvention, ISO 12945-2 grade scale |
| Wool shrinkage — two mechanisms (relaxation then felting) | Relaxation ~3-5% (reversible, worsted wovens); felting 15-20% up to 25% (permanent, scale-interlock) | Regentech, Wool shrinkage rule of thumb |
The 1-5 pilling scale is defined in ISO 12945-2; the acceptance threshold of grade 3-4 is a buyer/lab convention, not a limit fixed in the ISO text. Shrinkage percentage bands are directional trade consensus — cite the test procedure, not a standards-mandated pass/fail number.
Acceptable Quality Limit sampling is the language every credible inspection body speaks, built on ISO 2859-1 and its US counterpart ANSI/ASQ Z1.4. For general consumer goods the standard triad is fixed: 2.5% for major defects, 4.0% for minor, and zero tolerance for critical. QIMA, HQTS, SGS, Bureau Veritas, and Intertek all inspect wool coat finishing — loose threads, colour deviation, accessory pull strength — against AQL 2.5. The distinction buyers miss is that one extra major defect can flip an entire lot from accept to reject, which is why the sample size and AQL level belong in the purchase order, not in a verbal agreement after production.
| Metric | Value | Source |
|---|---|---|
| AQL — major defects | 2.5% | QIMA, AQL Guide |
| AQL — minor defects | 4.0% | QIMA, AQL Guide |
| AQL — critical defects | 0% (zero tolerance) | QIMA / HQTS, AQL defect classification |
| AQL 2.5 as most common consumer-goods standard | AQL 2.5 (most common) | QIMA, AQL Guide |
| AQL 2.5 defined by a named inspection body | 2.5% of total order quantity as acceptable major-defective goods | HQTS, Explaining AQL 2.5 |
| AQL level for wool coat finishing checks | AQL 2.5 (loose threads, colour deviation, accessory pull strength) | QIMA, AQL applied to garment finishing |
ANSI/ASQ Z1.4 is the US counterpart to ISO 2859-1 (closely aligned, not table-for-table identical). Dimensional-change acceptance limits are brand-set tolerances, not published in ISO 6330 itself — the standard defines the wash procedure only.
The wool market a small brand buys into is large and Asia-centred: $44.20B globally in 2026 by Mordor Intelligence, with Market Data Forecast putting it at $45.08B — near-agreement from two independent measurers — and 46.8% of it in Asia-Pacific. China merino volume is essentially flat at 22.74 kilotonnes, so raw supply is not the swing factor; fiber grade, blend ratio, and construction complexity are. On the ground, wool-blend fabric bottoms out around $2.50-4.50/meter for promotional cloth at roughly 100-meter MOQ, but that is not premium tailored-coat fabric. The real cost driver for boutique brands is order size against the roughly 300-piece industry MOQ convention; specialist factories that run low minimums exist and change the math entirely — Jinxu, for example, holds a 200 pcs per style/color MOQ for wool and cashmere outerwear.
| Metric | Value | Source |
|---|---|---|
| Global wool market size (2025 -> 2026) | $42.02B (2025) -> $44.20B (2026); $56.95B by 2031 at 5.20% CAGR | Mordor Intelligence, Wool Market Report 2031 |
| Global wool market size (alternate measurer) | $43.51B (2025) -> $45.08B (2026); $59.82B by 2034 at 3.6% CAGR | Market Data Forecast, Global Wool Market 2034 |
| Asia-Pacific share of global wool market | 46.8% (2025) | Mordor Intelligence, Wool Market Report 2031 |
| China merino wool market volume (2025 -> 2035) | 22.74 KMT (2025) -> 24.63 KMT (2035) at 0.80% CAGR | Expert Market Research, China Merino Wool Market 2035 |
| Global textile market (context anchor) | $0.79T (2026) -> $1.02T by 2031 at 5.09% CAGR | Mordor Intelligence, Textile Market press release |
| Typical finished wool-coat / apparel MOQ (industry convention) | ~300 pieces (commonly cited minimum) | Shanghai Garment, MOQ for bulk apparel production in China |
Global-wool USD sizing, China-merino volume in kilotonnes, and the broad textile-market anchor are three different scopes — do not conflate them. Two supplier-listed figures (a $2.50-4.50/meter fabric floor and a single-vendor 50-piece MOQ offer) carry "unverified original source" qualifiers and are excluded from this table and from Key Takeaways.
For a full line-item view of where wool coat cost actually goes, see the manufacturing cost breakdown for premium coat brands.
The Responsible Wool Standard is the traceability layer buyers increasingly want, and it is mid-transition. Textile Exchange finalised the successor Materials Matter Standard on 12 December 2025; audits to it can begin 31 December 2026, and RWS certification must convert by 31 December 2027. A product needs at least 5% RWS wool to carry the claim, and certified supply is real where the industry has invested — 43% of all South African wool is now RWS-certified. The verification step that matters is documentary: a legitimate RWS claim traces through Transaction Certificates from farm to finished coat, not a logo on a hangtag. Ask the factory for the scope certificate and the transaction chain, and confirm the certifying body against Textile Exchange's own records.
| Metric | Value | Source |
|---|---|---|
| RWS / Materials Matter Standard transition effective date | 31 December 2026 (audits to new standard can begin) | Textile Exchange, Materials Matter Standard Transition Policy |
| RWS / Materials Matter Standard mandatory compliance date | 31 December 2027 | Textile Exchange, Materials Matter Standard Transition Policy |
| Share of South African wool that is RWS-certified | 43% | Textile Exchange, Materials Market Report 2023 |
| World greasy wool production (2022) | 1,977.3 million kg (up 1.1% YoY) | IWTO, Wool Notes 2024 |
| World clean-weight wool production (2022) | 1,051.2 million kg (up 1.5%) | IWTO, Wool Notes 2024 |
| Woolmark certification performance test dimensions | 4 core areas: durability/strength, colorfastness, pilling resistance, dimensional stability | The Woolmark Company, Product Specifications & Test Methods |
| Minimum RWS wool content to carry the RWS claim | 5% | Textile Exchange, Responsible Wool Standard (RAF-101a-V2.2) |
The 5% minimum RWS content is the named-standard figure; the standard document is served as unreadable binary, so it is treated as high-confidence consensus tied to a named standard rather than a directly fetched primary citation.
Brands building a sustainability story around fiber sourcing can review the fuller sustainable wool and certification stack for how RWS fits alongside GRS and OEKO-TEX.
The specs above become useful only as questions in a supplier conversation. Ask for the micron count and Super number, not "high-quality wool." Ask for the fabric GSM and full composition in writing. Ask which pilling standard the mill tests to (ISO 12945-2 or ASTM D4970) and what grade it guarantees. Ask the AQL level for final inspection — 2.5 for major defects is the floor. Ask for the RWS scope certificate if sustainability is part of the brand story. And ask the MOQ and sampling timeline up front: sample-phase lead times of 2-4 weeks are typical industry-wide, though specialist factories quote tighter — Jinxu's own sample lead time runs 7-10 working days — and the roughly 300-piece convention is negotiable at factories built for boutique volumes.
| Metric | Value | Source |
|---|---|---|
| Pilling test method to specify | ISO 12945-2:2020 (modified Martindale) or ASTM D4970 | ISO 12945-2:2020 |
| Final-inspection AQL to specify | AQL 2.5 (major) / 4.0 (minor) / 0 (critical) | QIMA, AQL Guide |
| RWS content floor to specify (if certified) | 5% minimum RWS wool for the claim | Textile Exchange, Responsible Wool Standard |
| Sample and bulk lead time (buyer expectation) | Sample 2-4 weeks; full bulk commonly 6-12 weeks overall (specialist factories quote tighter) | Plucky Reach, What to Ask a Clothing Manufacturer |
Lead-time figures are practitioner rule-of-thumb, not measured statistics — framed as buyer-expectation ranges. Jinxu's own operational reference points (200 pcs/style MOQ, 7-10 working-day sampling, 5-stage inline QC) sit inside these consensus bands; reach out via contact to walk through the sampling and production process for a first order.
| Metric | Value | Source |
|---|---|---|
| Super 100s worsted — max fiber diameter | 18.75 microns | IWTO, Fabric Labelling Code of Practice |
| Super 150s worsted — max fiber diameter | 16.25 microns | IWTO, Fabric Labelling Code of Practice |
| USDA grade 64's fiber diameter | 20.60-22.04 microns | USDA-AMS, US Standards for Grades of Wool |
| Merino fiber-diameter band | 15-24 microns | Pendleton, Types of wool explained |
| Prickle / comfort threshold | ~30 microns | CSIRO (Naylor), Comfort Factor research |
| Wool coat fabric weight span | 300 to 700+ GSM | Bradic, GSM explained |
| Melton wool coating weight | 500-800 GSM | Fabriclore, Melton wool fabric |
| Mainstream wool-blend coat wool content | 60-80% wool | Coat Check Room, How much wool should a coat have |
| Pilling test method | ISO 12945-2:2020 modified Martindale | ISO 12945-2:2020 |
| Martindale pilling loading pressure | 9 kPa | ISO 12945-2:2020 |
| Shrinkage / dimensional-change test standards | ISO 6330, ISO 5077, AATCC 135 | AATCC Test Methods |
| Wool felting shrinkage (permanent) | 15-20% (up to 25%) | Regentech, Felting-shrinkage rule of thumb |
| AQL — major / minor / critical | 2.5% / 4.0% / 0% | QIMA, AQL Guide |
| AQL 2.5 = major-defective ceiling | 2.5% of order quantity | HQTS, Explaining AQL 2.5 |
| Global wool market (2026) | $44.20B (Mordor) / $45.08B (Market Data Forecast) | Mordor Intelligence, Wool Market Report 2031 |
| Asia-Pacific share of wool market | 46.8% (2025) | Mordor Intelligence, Wool Market Report 2031 |
| World greasy wool production (2022) | 1,977.3 million kg | IWTO, Wool Notes 2024 |
| China merino wool market volume (2025) | 22.74 KMT | Expert Market Research, China Merino Wool Market 2035 |
| RWS mandatory transition date | 31 December 2027 | Textile Exchange, Materials Matter Standard Transition |
| South African wool that is RWS-certified | 43% | Textile Exchange, Materials Market Report 2023 |
| Woolmark colorfastness light exposure | Up to 10 hours | The Woolmark Company |
This guide aggregates 46 verified data points on wool coat manufacturing, drawn from primary standards bodies and market measurers wherever a primary source exists, and from cross-verified fabric-trade consensus where — as is inherent to this topic — no primary body publishes the figure. Twenty-eight data points (60.9%) are Tier 1: named standards, primary market measurers, certifying bodies, and inspection bodies publishing their own methodology. GSM-by-coat-style, blend-ratio, and shrinkage-percentage bands have no primary measurer — IWTO publishes fineness and production volume only — so those figures are presented as clearly labelled industry-reported consensus, never in Key Takeaways.
Last updated: July 2026. Reviewed quarterly as standards bodies and market reports update.
Written by
Ray Wang
Women's outerwear manufacturing specialist with 13 years of experience producing wool, cashmere, and down coats for fashion brands across Europe and North America at JX Apparel Group in Jiaxing, China.
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