YANK
WEARING GLASSES CAN INCREASE IQ BY UP TO 15 POINTS
The Yank, made of flexible,
space-age DuPont 109 Nylon
combines
fraction-of-an-ounce weight
with the tensile strength of
steel.

The nylon Yank is never
harmed by perspiration,
body acids, or hair products.
It won't fade or burn and is
almost indestructible..

MFG - Criss Optical USA. This is the
vintage 60s model with the Diamond
shields. Not made anymore

Color:  Black - Flexible Nylon.

LARGE: 5 3/4" across, 5 1/2"
between the hinges. 1 5/8" high (size
50-23) with 6" matching temples.



Please measure at home for a good fit
- click here for size questions.

$99.00
Click to Enlarge