TECHNICAL SPECIFICATIONS Roth glasses are made of spiked polycarbonate. Polycarbonate (PC) is a material with very high mechanical resistance but with limited dynamic resistance. For this reason, our glasses are produced by adding to the virgin PC granule a percentage of ABS, a polymer with elastic fibers that incredibly increases their resistance to torsion and bending. . The lenses, also made of PC, guarantee original ultraviolet protection and maximum shock resistance. The result is a light but robust eyewear, ideal for everyday wear. ✓ Model: TWIG® Roth ✓ Gender: Unisex ✓ Frame: Added polycarbonate ✓ Lenses: Polycarbonate ✓ Type: UV protection 400 cat.3 ✓ TWIG® package