Just like its name evokes, the Bertha is our biggest and baddest frame in the lineup. The oversized temples and large face block out all unwanted light leakage allowing your to focus on what matters.
Cast Molded, duraclear polarized trivex lenses with fog-inhibiting technology, anti-reflective coatings and a z87.1 impact rating deliver crisp, strain-free vision built for all day wear. Lighter and stronger than polycarbonate, clear like glass or mineral lenses. Duralite grilamid TR-90 frame in a black finish is extremely resistant to UV rays, heat, chemicals and stress cracking.
8 base frame (most wrap) curvature for maximum view coverage.