Made 100% from plants • Certified sustainably sourced organic cotton (52%) • FSC Natural tree rubber certified by Fair Rubber Association (48%) Made by an ethically-operated 4th generation family business in Japan. All products are dyed using low impact dyes, a non toxic fabric dye that has been certified as eco-friendly by Oeko-Tex with their Standard 100 label. Oeko-Tex is an international trademark with stringent standards for product safety and sustainability, so you can be sure any dyes with the Standard 100 label are completely devoid of harmful substances. ...