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™. Vision ChromaPop™ lenses enhance contrast and natural color to make the details pop Carbonic lenses offer impact resistance and clear optics Smudge and moisture resistant coating for easy cleaning and clear optics (ChromaPop™ option only) Anti-reflective coating improves clarity and reduces eye strain (ChromaPop™ option only) 100% UV protection Fit / Integration Medium fit, large coverage 4-base lens curvature is just right for everyday wear Megol nose pads provide nonslip grip so glasses stay put Frame Evolve™ bio-based frame material is lightweight and durable AutoLock hinges hold frames open for easy one-hand on and off