On Sale. Smith Toaster Slider Sunglasses The Toaster's lightweight frame and stylish design make it a leader in the Slider collection. Smith's patented Interchangeable lens system utilizes distortion-free 9 base lenses in all Slider frames to provide precise optical clarity and maximize coverage while minimizing peripheral exposure to sun, wind, and glare. With over a dozen replacement lens tints to choose from, the Smith Slider series provides versatility across the full spectrum of light condi