Who makes Kirkland Signature Men's Cotton Jean?
As of July 5, 2026, evidence points to One Jeanswear Group Inc as the manufacturer of Kirkland Signature Men's Cotton Jean, but no tier 1–3 source names the link directly.
The common claim
What most answers say — and what the evidence supports
The prevailing answer online is that Costco keeps its jeans maker anonymous and sources Kirkland Signature denim from unnamed overseas OEM factories. Costco's own product data is more specific: its product-detail 'mfName' (manufacturer-of-record) field names One Jeanswear Group Inc for the Kirkland Signature Men's Cotton Jean. Because that field can name a vendor or brand-company of record rather than the sewing plant, the evidence points to One Jeanswear Group as the supplier of record - not a confirmed factory.
Evidence & sources
Every source is graded on the six-tier rubric and archived, so the citation holds even if the original moves or paywalls. The tier badge grades the source; the status grades our confidence in the maker.
Tier 4
Costco's product-detail catalog JSON embeds a manufacturer-of-record field: mfName="ONE JEANSWEAR GROUP INC" for the Kirkland Signature Men's Cotton Jean (item 100513855). The same value is present across four Wayback snapshots (Oct 2025-Feb 2026), so it is a stable field, not a one-off. Apparel has no deterministic registry, and the mfName field can name a vendor/brand-company of record (One Jeanswear Group is a New York apparel house, part of Centric Brands) rather than the sewing plant, so this sole-route mfName caps at probable per the calibrated grading rule. costco.com blocks live fetch; read from the Wayback snapshot.
Frequently asked
Who makes Kirkland Signature jeans for Costco?
Where are Kirkland jeans made?
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