Crushing a gravel descent on the bike or sprinting out and through the T2 on the last segment of your Triathlon, the Smith Attack sunglasses are made for situations that call for focus and speed. Whether the sun is high in the sky or hidden behind dense tree cover, the lens interchange system lets you quickly swap between the included ChromaPop™ bright-light and high-contrast lenses. The lowered-brow shape offers ventilation while the no-slip temples and a two-position nose pad keep them securely in place when you break a sweat.A gray based lens boosted with ChromaPop™ colour enhancement technology and finished with a vibrant violet mirror. Great for use in areas of medium to bright exposure, this lense will enhance color and clarity and let you effortlessly see more detail. Provides 100% protection from harmful UVA/B/C rays.FrameSmith MAG™ lets you change lenses quicklyVisionChromaPop™ lenses enhance contrast and natural color to make the details pop.Smudge and moisture resistant coating for easy cleaning and clear optics.100% UV protection.Fit / IntegrationTwo-position adjustable nose pads.Megol temple and nose pads provide nonslip grip so glasses stay put.What\'s IncludedPerformance zip case