Lots. Usually they have the secret word "titanium" written on them.
dr grant
>I know that the frame of the brand Featherwate is made of the light
> substance Titanium. Are there any other brand names that are made of
> Titanium?
>
> Thanks for any info.
Featherwate is a brand of Lenscrafters plastic lens material that is really
just polycarbonate (just about the worst optical quality you can buy). I
don't know if it applies to their frames.
As already mentioned, many frame brands have some frames made from titanium
(which are usually marked as such).