Buy a t-shirt labeled "sustainable" and you might see two logos on the hang tag: GOTS and OEKO-TEX. Most shoppers assume they mean the same thing. They don't, not even close. ## What GOTS Actually Certifies GOTS, Global Organic Textile Standard, is the gold standard for organic textiles. For a garment to carry the GOTS "organic" label, it must contain at least 95% certified organic natural fibers. There's a secondary "made with organic" tier at 70%. What makes GOTS meaningful is that it certifies the entire supply chain: - Cotton grown on certified organic land

• Fiber spun without petroleum-based auxiliaries
• Fabric dyed using GOTS-approved dyes (no heavy metals, no azo dyes, no chlorine bleach)
• Factory meets GOTS social criteria, minimum wage, no child labor, right to unionize, safe working conditions
• Packaging and accessories (buttons, zippers, linings) meet environmental standards The license number next to a GOTS logo is searchable at global-standard.org. You can see the certified facility, the scope of certification, and the issuing body. ## What OEKO-TEX Actually Certifies OEKO-TEX is not an organic certification. Read that again. The most common OEKO-TEX product, Standard 100, verifies that a finished item contains no harmful substances above specified thresholds. The list is long: heavy metals, formaldehyde, pesticides, phthalates, certain dyestuffs, pH values. A Standard 100 certificate means: "This finished product was tested and contains no detectable quantities of the listed harmful chemicals above permitted levels." It does not mean organic fibers, sustainable processing, or fair labor. A conventional cotton shirt grown with pesticides, dyed in a coal-powered factory, and sewn by underpaid workers can legally carry OEKO-TEX Standard 100, as long as the finished product itself passes chemical residue testing. This doesn't make OEKO-TEX worthless. Testing finished products for harmful chemical residues is useful, especially for items in contact with skin. But it's a consumer safety certification, not an organic certification. ## OEKO-TEX Has Organic Products Too OEKO-TEX launched "OEKO-TEX Organic Cotton" in 2023. This is a separate certification that does verify organic cotton plus chemical testing. It's a legitimate organic claim. Just check you're looking at the Organic Cotton variant, not plain Standard 100. ## The OCS Standard The Organic Content Standard (OCS), administered by Textile Exchange, tracks organic fiber content through the supply chain but has no requirements for processing, dyes, or social criteria. OCS "100" means 95%+ organic fiber. OCS "Blended" means 5–95%. OCS is better than nothing, noticeably weaker than GOTS. ## Quick Comparison | Label | Organic fiber? | Dyes/processing? | Factory conditions? | Chemical residue? | |---|---|---|---|---| | GOTS | Yes | Yes | Yes | Yes | | OCS | Yes (content only) | No | No | No | | OEKO-TEX Standard 100 | No | No | No | Yes | | OEKO-TEX Organic Cotton | Yes | Partial | No | Yes | ## What to Buy If You Want Organic Clothing Look for GOTS first, it covers everything you care about. If not available, look for OCS or OEKO-TEX Organic Cotton to confirm the fiber is organic. If you only see Standard 100, understand what you're getting: a garment that passes chemical residue testing, likely made from conventional fibers. The shorter version: GOTS is organic. OEKO-TEX Standard 100 is safe. Both are useful. They're not the same thing.