Caddis is a Californian anti-aging eyewear brand that offers a collection of on-trend optical grade readers with style and substance. Caddis frames are a high-quality handcrafted collection made up of acetate and metal alloy frames. The D28 is the largest style in the Caddis collection. A bold frame suited to both Men and Woman who are looking for a statement piece. - Optical grade 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- All Caddis lenses feature Proprietary Frequency Blue Light Filter. Best in Class Blue Light protection where the blue light filter is infused, not coated.