Less is More
Quite simply, Trivex material is one of the
lightest-weight lens materials on earth - and that adds up to the
ultimate in all-day comfort.
|Specific Gravity (g/cm3)
This number compares the relative density of an
object to an equal volume of water. Anything with a specific
gravity less than 1.0 will float. The lower the number, the lighter
and, therefore, more comfortable the lens will be.