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OEKO-TEX Standard 100
The Standard 100 by Oeko-Tex is a global certification awarded to clothing and textiles that are free from harmful substances. Products that use the Standard 100 by Oeko-Tex logo have been tested at all stages of production to ensure there are no harmful chemicals or residues present, and that the product was made in environmentally friendly conditions.
![Happy Hiking Wool Socks - Navy](http://images.ethicalsuperstore.com/images/resize260/570465-happy-hiking-socks-navy-1.jpg)