This medium frame fit / size 50 is handbuilt with eco-friendly acetate frames and Como-Tech Italian hinges. It features an ultra-thin polycarbonate polarized lens with multi-layered anti-salt water coating, decentered optical clarity enhanced by nine layers of protection, a super hydrophobic lens coating to repel water and dust, an anti-reflective reverse coating for clarity, and a 6 base lens curvature. It is also fully Rx-able.