The cool cousin of our Lowdown 2. The Lowdown Steel XL sunglasses have the same classic looks, but with a metal edge and XL size. The lightweight frames have soft rubber nose pads, so they don't slide down when you break a sweat. Smith ChromaPop lenses dial up the detail and color, so you see as sharp as you look. Vision. ChromaPop lenses enhance contrast and natural color to make the details pop. 100% UV protection. Fit / Integration. Medium fit, medium 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. Smith branded metal hinges. Lightweight, stainless steel temples.