Würkin Stiffs' Garment Shield is a powerful, non-toxic and superhydrophobic fabric & clothing protector designed for use on jackets, shirts, pants, ties, dresses, fabric masks, and more! Protect your favorite garments safely from accidental spills and repel stains with a brand name that continues to be trusted by millions of shirts worldwide. + Premium Stain Protector + Strengthen Your Fabric Mask as Effective as N95 + Dries Clear & Odorless Without Changing Fabric Feel + No Fluorochemicals and/or PFAS + Non-Toxic & Water Based, Unlike Other Brands + Non Aerosol - Powered by Air + Use on Cotton, Wool, Polyester, Denim, and Spandex + Not Recommended For Use On Silk Fabrics