Whether you're on the road, the trail or the water, Smith's Attach Sunglasses with ChromaPop' Platinum Lenses are optimized for your active lifestyle. Wear them all day without eye fatigue or overall discomfort. The low-brow design of the wraparound lenses increases ventilation on high-velocity rides or runs, while the megol temples and nose piece offer a no-slip fit when you work up a sweat.Should the sun sneak behind the clouds or you find yourself in the shade of a canopy of trees, use the included Rose Flash Lens to accommodate the changing light conditions. It swaps out quickly and easily thanks to Smith's MAG' interchangeable technology. Each of the lenses sports a hydroleophobic coating to repel water, grease and dirt, and wipes clean without smudging.