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Randolph Lens Colors, Technology & Sizing








SkyTec™ GRAY

Worn by U.S. military pilots and NASA astronauts.  Allows all colors to come through naturally and without distortion—true color reception.

USE: Best for bright overhead sunlight.


SkyTec™ AGX

Reduces eye fatigue with a unique green tint that selectively filters colors.

USE: Best for outdoor activities in varying light.


SkyTec™ TAN

This high contrast lens minimizes scattered blue light to optimize contrast and sharpen detail.

USE: Best for bright, overcast days and low light situations.


Randolph Lenses

SkyTec™ Mineral Glass

SkyTec™ Mineral Glass lenses are ground and polished to provide distortion-free optical clarity, then chemically-tempered to help resist breakage and scratches. World-renowned for superior vision, they’re also drop ball-tested with a ¼-inch steel ball from three feet away to meet FDA and ANSI safety standards.



SkyTec™ Performance PC

A durable hard coat helps prevent scratches. SkyTec™ Performance PC lenses are made from the same material we use to make our professional shooting eyewear: optical-grade, shatter-resistant polycarbonate.



SkyTec™ Lite Lens

SkyTec™ Lite Lens technology combines the optical clarity of our standard lenses with lightweight durability. Anti-reflective performance coating cuts light reflection even further for maximum comfort.



Looking in a mirror, hold a ruler horizontally across your face. Measure in inches the distance between your left and right temples.

Then use the chart below to convert your measurement to a frame size that may suit your face.

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”

(Please note: Wrap-style frames fit more snugly.)

Own a Pair That Fits?You may also use a frame you currently own to determine your best size. Frame sizing is typically noted on the inside of either temple (see illustration below). The eye/lens size is usually first, then the bridge size, then temple size. Use the eye/lens size to determine the best frame size. 


Note: If the eye size is not indicated on the temple, look under the bridge.