All of the materials that we use are planet friendly, animal friendly and contain no added chemicals, such as silver or antibacterial treatments, stain-resistant or Perfluoroalkyl and Polyfluoroalkyl substances (PFAs or PFSAs). 

• WUKA Ultimate Midi Brief, Ultimate Boxer Shorts, Bralette, Everyday Midi Brief and Bikini, and Ultimate High Waist are made from Tencel.
• WUKA Ultimate Bikini Brief and Ultimate Lace Period Pants are made from GOTS organic cotton (Global Organic Textile Standard). This is guaranteed to be 95% Cotton and 5% elastane. 
• The Basics range is made from BCI certified cotton! 

The moisture-resistant parts are made from Thermo polyethylene Laminate (TPU) which is used in reusable nappies!