VisionAid(TM) SideShields by Radians are a quick and inexpensive way of supplying additional protection to visitors and employees wearing personal prescription eyewear. Flexible sideshields are engineered to fit all types of eyewear by easily attaching to temples and fronts. Made in the USA. Easy-on, easy-off, weaves through the temple. No parts or tools required. No metal parts. Blocks 100% of UV rays. Molded of soft, bendable vinyl .075. Absorbs the energy of impact. Allows temples to fold correctly. Conforms to ANSI Z87.1 standards. Patented technology.