In 1980 Ray-Ban introduced the
Ambermatic Mirror lens,
described at the time as the, "...pre-eminent skiing lens.".
(The plain Ambermatic All Weather lens had already been
out a few years before this pair was made -
here's an ad
from 1978, which shows them in a Vagabond.) But the
mirrored version were specifically for sports, our pair a
double gradient mirror, better for water/ski sports.
(See this pair with full mirror lenses in the 1980 ad, above.)
Like Ray-Ban's Timberline from the same period, these
are named after a well known US mountain ski resort -
Powderhorn is in beautiful Colorado. Not a large pair
so could suit sportsman or sportswoman.
product code : k5398 :
1980s layered blue/white/pea green
plastic frame by B&L RAY-BAN
double gradient mirrored
ambermatic glass lenses.
lenses : good - 7
frame : very good
fit : very good
face : 135mm
lens width : 58mm
lens height : 50mm
arms : 135mm
uv transmission % : 2-6 (top to middle)
light transmission (LTF) % : 9-53
uv protection y/n : y