The next generation in Smith performance eyewear has arrived. The Attack is faster in every detail. Experience the sound of speed with Smith MAG� interchangeable technology; the lens change innovation that enables fast ChromaPop� lens swapping for varying light conditions. Two ChromaPop� lenses are included, and have been crafted with a lowered-brow design for increased ventilation. The Attack also features our two-position nose piece that is engineered to give you a perfect �it and all day comfort. Megol temples ensure that your glasses are secure at your fastest velocity.