At Smith, it's our Responsibility to the Community to deliver product with environmental considerations, so we created the Lowdown 2 CORE sunglass frame from recycled post-consumer water bottles. Each Lowdown 2 CORE frame is made with polarized lenses and uses an embossed logo to avoid the use of adhesives. It comes with a microfiber bag made from recycled plastic bottles, and 100% recycled packaging. Polarized Brown Lens: A high contrast brown lens is ideal for everyday use, and particularly pleasant when scenery is abundant on the trail or road. This lens is polarized and built on our carbonic lens platform. (Visible Light Transmission = 15%) Features: Vision: Evolve polarized bio-based lenses Fit / Integration: Medium Fit / Medium Coverage 4 base frame Frame: Made from recycled PET water bottles 5-barrel metal hinges Includes: Includes microfiber storage bag made from recycled PET water bottles.