If you like the classic looks of our Lowdown 2 sunglasses and your face is on the large side, then this XL version is for you. The bio-based frames have soft rubber nose pads, so they don't slide down when you break a sweat. They come with your choice of crystal-clear Carbonic lenses or Smith's color-boosting ChromaPop™. Smith Optics proudly assembles select products in our Clearfield, Utah facility, part of a nearly 60-year commitment to expanding U.S. operations and innovation. Read more about Smith prescription eyewear. Vision All Smith clear lenses come standard with a Premium Anti-Reflective coating, on the front and backside of lenses, which reduces glare to prevent eye fatigue and gives better visual acuity True optical clarity, through lightweight Polycarbonate lens material made for daily and active wear Superior hard coating, for improved scratch resistance Hydroleophobic coating repels water, dirt, and grease Photochromic and blue light lens options available Fit / Integration Large fit, large coverage 4-base lens curvature Flatter frame for an everyday, casual fit Megol nose pads provide non-slip grip so glasses stay put Frame Evolve™ bio-based frame material is lightweight and durable Custom Smith logo hinges