Frame: Metal-free, screw-less hinge with integrated brow design easily rests on users glasses for secure fit and reduces gaps; Strong and durable construction; The frame has a base curve of 4 to fit more reliably on existing prescription glasses; 3-piece spectacle design for an economical solution; Clear temples allow maximum visible light transmission ideal for indoor use
Nose pads: Lens integral
Lens: Polycarbonate lenses provide 99.9% UVA/UVB/UVC protection to help prevent eye damage like cataracts, retinal damage, and other conditions that can cause temporary vision loss
Performance: EN166:2001 Certified; Class 1 optical performance; UV Protection rating 2; Light Transmission ratings: 1,2; 'T' mark Extreme Temperature Impact requirements; 'F' mark Low Energy Impact requirements; Manufactured to comply with the ANSI/ISEA Z87.1-2020 standard for personal eye protection; Z87+ High Velocity Impact rated
