6 Base Curvature - The base curvature corresponds to the curve of the lens. The higher the number, the higher the curve. 6 base styles have a “flatter” look. 8-9 base curves hug closer to the face.
eVolve Material - For more than 40 years Smith has been a steward of the outdoors. Great days in the water, dirt, and snow are made better when we protect the environment as well. By utilizing a new material called Rilsan Clear, they are creating lightweight, durable, and fully transparent sunglass frames that are over 53% bio-based.
Hydrophilic Megol Nose Pad - Placed at the nose and on the temple tips, this material gently grips your skin to help keep your frame in place. The gripping power increases when introduced to moisture.
Smith Polarization - It’s like noise-canceling headphones for your eyes. Glare off of horizontal surfaces like snow, water, and asphalt, decreases depth perception, reduces visual acuity, and causes eye fatigue. Smith precisely aligns the polarized visual layer inside the lenses to filter out 99.9% of this “visual static” for a finely tuned view of the action.
Hydroleophobic Coating - This coating repels moisture, grease and grime. A barrier between your lenses and the world. Water will bead up and dispense without streaking. Smudges from fingerprints are wiped clean easily.
Anti-Reflective Coating - Vacuum applied Anti-Reflective (A/R) coatings on the back side of the lens will eliminate bothersome sidelight reflections.
ChromaPop - ChromaPop lenses are the most advanced polarized lenses in the world and allow you to see true colors more quickly to maximize your visual experience. By blocking color wave intersections as they pass through the lens, ChromaPop is able to eliminate color confusion, enabling you to see the outside world with an unparalleled level of vibrancy.
These measurements include the width of the lens, the width of the bridge and the width of the arms/temples measured in millimeters.
For example, a 56-17-144 frame:
1) Lens Width - 56mm
2) Bridge Width - 17mm
3) Arm/Temple Width - 144mm