Canada flag made with Cotton-Silk water repellent NUVA 1811 and comfortable cotton muslin fabric interior. Cotton-Silk fabric with NUVA -1811 water repellent micron technology that prevents absorption, repels liquid aerosols that may contain germs. Woven Cotton-Silk allows air circulation, blocks small particles, comfortable to wear and is soft and perfect for sensitive skin. ** The NUVA-1811 is certified by Oekotex Standard 100-2019, Switzerland. Reusable last up to 30 washes, environmentally friendly. Metal nose pin to allow optimal fit, seal to the face. **STANDARD 100 by OEKO-TEX® is one of the world's best-known labels for textiles tested for harmful substances. It stands for customer confidence and high product safety. You can be certain that every component of this article, i.e. every thread, button and other accessories, has been tested for harmful substances and that the article therefore is harmless in human ecological terms. *** Shipping Fees will be added after check out based on quantity.