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