The Matte Teal Green Readers are a smart look. This square design features a sophisticate dark teal color. Since they're perfect for anytime of year, make these glasses your go-to for everyday wear. Complimentary canvas case included. Blue light filtering specs filter up to 40% of blue light emitted from digital devices, artificial fluorescent and LED light exposure.   Flex hinges for long wearing comfort fits a variety of head sizes.   Anti-reflective coating.   Distortion free lens for better acuity.   Optical fit: 51mm lens width, 20mm bridge, 145mm temple length. 37% polycarbonate, 30% cellulose propionate, 30% acrylic. 3% copper. Imported.