The metal frames tend to be easier to adjust and are more flexible compared to plastic frames, not to mention that they are also lighter and slimmer.
When it comes to metal frames, titanium is considered as the lightest material. You can also find frames made of nickel alloy or stainless steel.
Flexible metal frames were also developed for the past few years. Even though metal frames have more limited color choices, the selection continues to grow day by day.
The common downside is that there are people who develop allergies to metal and this makes plastic spectacle frames a …