Our Dupont™ Sontara® aerospace-grade fabric wipe (that’s right, not paper!) is designed to be ultra-soft and yet be a very tough cleaning tool. It’s made by a process called hydro-entangling, where pulp and polyester fibers are tangled together by pounding them with high-pressure water jets. This process removes any contaminants and excess lint, leaving a hypoallergenic cloth free of any binders or glues that can breakdown during cleaning and leave streaks on your eyewear.