Optical eyeglasses
TR90 is a thermoplastic material that is durable, lightweight, and flexible—all these qualities you usually experience in most eyewear today. As a result, TR90 glasses are extremely comfortable to wear even when using them for longer periods.
The material's flexibility allows the eyeglasses to bend under pressure and contour the wearer's face comfortably. Most importantly, these frames are resilient to possible damage.