Product Certificates.

Business License

Strenchfitness a leader in state-of-the-art underwear well-known brand source from us .12 years of manufacturing experience
WRAP, BSCI, Oeko Tex Standard 100-certified.

Strenchfitness Global Organic Textile Standard (GOTS)

This indicates that the product is definitely organic through every stage of production from ginning to the labeling of the final product. This includes all aspects of manufacturing from the use of biodegradable and toxin-free dyes, to low impact waste treatment and water supply systems in factories, fair labor practices, and final products that are free of allergenic, carcinogenic or toxic chemical residues. This officially and internationally recognized standard is currently one of the most trusted organic textile certifications.


The standard indicates that the textile product is free of certain groups of harmful substances, ensuring that all certified products are harmless to health. The certification standards fall into three levels: 100, 1000, and 1000 plus as the highest and indicates that everything from fabric, threads, interlinings, hook-and-loop closures, hooks, etc. have met the criteria.