Best-in-class frequency lenses- infused in blocks 45% of harmful blue light. CR39 lens. Superior hard coat for anti-scratch durability. Anti-reflective coatings to mitigate reflections and glare. Super hydro-phobic and oleo-phobic coatings for anti-smudge. Handcrafted acetate designs utilizing state of the art CNC and finishing for fit, function, and durability.