The Smith Men's Attack Performance Sunglasses mark the next generation of performance sunglasses and is faster in every detail. These performance sunglasses let you experience the sound of speed with Smith MAG™ interchangeable technology the lens change innovation that enables fast ChromaPop™ lens swapping for varying light conditions. The Attack includes two ChromaPop™ lenses and have been crafted with a lowered-brow design for increased ventilation. The Smith Attack also features the brands two-position nose piece that is engineered to give you perfect fit and all-day comfort. Megol temples ensure that your glasses are secure at your fastest velocity.