Randolph Engineering Lens & Sizing Guidelines
Lens Options
| Tan Polarized | Increases contrast while reducing eye fatigue and glare in bright conditions. |
| Tan | Works exceptionally well for those needing eye protection and contrast on overcast days. |
| Gray Polarized | The ultimate tint for extremely bright conditions and glare reduction. |
| Gray Flash Mirror | Has a subtle mirror coating applied to the Grey lens to reduce harsh light without polarization. |
| Gray | Provides absolute true color reception. |
| AGX | Has a slight green tint which selectively filters the color spectrum to reduce eye fatigue. |
Frame Sizing Guidelines
Looking into your mirror, hold a ruler so it is lined up with each temple. Measure in inches the distance between your left and right temples.
Suggested Frame Size |
Face Size (temple to temple) |
| 49mm | 115mm or 4.5” |
| 52mm | 127mm or 5” |
| 54mm | 130mm or 5.125 |
| 55mm | 135mm or 5.25” |
| 57mm | 140mm or 5.5” |
| 58mm | 146mm or 5.75” |
| 61mm | 152mm or 6” |
| 59mm(Raptor only) | 140mm or 5.5” |
Find your current frame size
You could also use the size from a current frame you own. Look on the inside of each temple to find the size of the frame (see illustration below). The eye size is usually first, then the bridge size, then temple size.
Note: If the eye size is not on the temple, look under the bridge.
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