Zenkai apparel with our supernatural Filium® technology will not retain odor, so you can wear your apparel multiple times without washing and still smell fresh. Less washing means less laundry soap going into our water, and with our clean technology and plant-based fabric there are zero nano-particles and fluorocarbons released into our streams and rivers. Our core technology is produced according to bluesign® standards for sustainable materials and production. Our factory is certified Standard 100 by Oeko-Tex verifying no harmful substances are used in production.