OEKO-TEX® Standard 100 is a fabric-level certification: the textile itself is tested for harmful substances against defined limit values. Class I is the strictest product class in the Standard 100 system — the limit values applied to articles for babies and toddlers — so a Class I certified fabric meets the tightest chemical-safety threshold the standard defines.
The Global Recycled Standard (GRS) verifies recycled content and tracks it through the supply chain. GRS-certified recycled fabrics, such as recycled polyester fleece and jersey, carry verified recycled content at the fabric stage. GRS is a chain-of-custody standard, so a finished-garment GRS claim requires every stage of the chain to be certified — brands normally specify GRS at the fabric level unless the whole program is set up for certified garment claims.
Name the standard next to the fabric spec — for example "280 GSM French terry, OEKO-TEX® Standard 100 certified" or "GRS-certified recycled polyester fleece" — the same way weight, handfeel and colour are specified. Certified options then run through the normal flow: sourcing options are confirmed at quotation, and the fabric is locked on the approved sample before bulk production.
Certified fabric choices follow the same quoting flow as any other fabric spec, with MOQ starting from 50 pieces. Stock options are the simplest path; special weights, colours or finishes can affect sourcing and sample timing the same way they do for any fabric choice.