Rugged and lightweight, the Smith Optics Frontman sunglasses are well suited for high-intensity activities like running, hiking, climbing, and skiing. The ChromaPop Carbonic lenses enhance natural colors and feature Polarchromic technology, which combines the glare-reducing benefits of polarization with the UV-sensitive, self-tinting properties of photochromic lenses. A significant head curvature provides a form-fitting feel, while thick temples reduce peripheral glare. The Evolve frames are made from Rilsan Clear: an eco-friendly, non-petroleum-based material that’s lighter and more flexible than polycarbonate. Finally, Hydrophilic Megol has been placed at the nose and on the temple tips, providing a gentle grip that increases when introduced to moisture.