At COES, we believe in transparency and providing our customers with accurate, science-backed product information. Recently, we conducted further testing on COES COPPERFINGER socks, and we’d like to share an important update regarding their copper content.

Why the Update?

Previously, we stated that COES COPPERFINGER socks contained 45% copper-infused fiber. However, through detailed testing and verification, we have confirmed that the actual copper-modified polyester fiber content is 33.2%. We sincerely apologize for any confusion and are committed to ensuring that all product information is precise and reliable.

Material Composition Breakdown

The toes of COES COPPERFINGER socks are made from a carefully selected blend of fibers that maximize comfort, durability, and performance:

• 37.1% Polyester – A durable, moisture-resistant synthetic fiber.
• 33.2% Copper-Modified Polyester Fiber – Infused with copper for antimicrobial and odor-resistant properties.
• 27.9% Cotton – A breathable, natural fiber that enhances comfort.
• 1.8% Elastane – Also known as spandex, providing stretch and flexibility.

Additionally, testing confirms that the fabric contains 5090 mg/kg of extractable copper, reinforcing its strong antimicrobial properties that help reduce odor, inhibit bacterial growth, and enhance overall hygiene.

Does This Change the Performance?

Not at all! The antimicrobial, moisture-wicking, odor-control, and compression benefits of COES COPPERFINGER socks remain the same. Research shows that copper content beyond a certain level does not necessarily enhance antimicrobial effectiveness. The 33.2% copper-infused fiber provides the perfect balance between functionality, durability, and comfort.

Our Commitment to Transparency and Quality

At COES, our goal is to deliver honest, high-quality products that our customers can trust. This update is part of our ongoing commitment to accuracy and innovation. We appreciate your continued support and will always strive to bring you the best in copper-infused performance socks.

Thank you for being part of the COES community! If you have any questions, feel free to reach out—we’d love to hear from you.

🔗 For more updates and product insights, stay tuned to our blog!