Who makes Kirkland Signature Men's Cotton Jean?
As of August 31, 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’s commonly claimed, 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 manufacturer 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
Each source is graded on the six-tier evidence rubric, where tier 1 is strongest. Sources are archived, so a citation still works if the original page moves or goes behind a paywall.
Tier 4
Costco's manufacturer field (mfName in its product-detail catalog data) reads "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 plant-code registry, and Costco's manufacturer 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 field, as the sole route, 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?
Get notified when a Kirkland manufacturer changes
Suppliers change without announcement. Sign up to get an email when we log a new maker for a Kirkland product.
Change-log newsletter · no spam · unsubscribe anytime.