From Mars Reprise

OEKO-TEX ® Standard 100

If a textile item is awarded the STANDARD 100 label, you can be sure that all the components of the item, including all threads, buttons and other accessories have been checked for harmful substances and the item is therefore completely safe for use. The tests are carried out by our independent OEKO-TEX^®^ institutes, based on our extensive OEKO-TEX^®^ criteria. The test procedure takes into account numerous regulated and non-regulated substances that could harm human health. The value limits set by the STANDARD 100 often go beyond national and international requirements.