Cosmo

Blue Light Filter: All of the above plus they filter dangerous blue light from digital screens and the sun.
Transitions: Standard features plus a gradual transition to darker tint when exposed to bright light along with blue light filtering. Choose from grey or brown tint to match the frame color.
Anti-Fog Lenses – This lens has an anti-fog coating on the back side where fogging occurs when using face masks or changing of climates and an anti-reflection coating on the front side which helps reduce glare and reflections.