Our best selling frame for 10+ years in a row!! EcoClear Oxygen readers are a wonderful Earth-friendly product. These rimless readers with optical quality acrylic aspheric lenses provide crystal clear vision and an even clearer conscience. Built with plant-based, lightweight and eco-friendly materials, the Oxygen Limited Edition model provides good value, superior comfort and minimum impact on the environment. With chic, rimless design and ultra-lightweight feel, EcoClear Oxygen frames are super durable, economical, stylish and Earth friendly. Exclusively made by OPTX20/20.