Includes three interchangeable lenses for varied light conditions throughout the day.

Sculpted with a proven and popular half-frame design the Smith Theory Sunglasses give small to medium faces full UVA UVB and UVC eye protection for skiing paddling cycling running and backpacking. Hydrophilic Megol™ pads along the nose and temples comfortably grip your face even if you're momentarily immersed in water. The Grilamid™ TR90 frames dramatically bend and flex before they breaks making the Smith Theory Sunglasses excellent for doing outdoor stuff through a wide range of temperatures. All interchangeable lenses feature a 9-base Carbonic™ lens structure the most impact-resistant transparent molded material available in the world. The Techlite™ glass lens relies on a special TLT grind process that lightens the Techlite™ lens load while still exceeding ANSI Z80.3 impact resistance and remaining far more scratch resistant than sport eyewear that costs thrice the price.