Whether you're running, rolling or sliding, a crisp view of the terrain translates to full-speed-ahead fun. The Smith Defy sunglasses double down with a lightweight, rimless design and terrain-defining ChromaPop™ optics for unobstructed, high-contrast vision. Whether you're on the move in the hills or simply taking in the view from the back deck, an interchangeable lens lets you match the light conditions. Product Details Vision ChromaPop™ lenses enhance contrast and natural color to make the details pop Smudge and moisture-resistant coatings for easy cleaning and clear optics Interchangeable lenses Fit / Integration Medium to large fit, large coverage 5-base cylindrical shield lens curvature Slight wraparound fit Megol temples and nose pads provide non-slip grip so glasses stay put Adjustable nose pads for a custom fit Frame The high impact resistant TR90 nylon frame is durable, lightweight and flexible AutoLock hinges hold frames open for easy one-hand on and off