Best-selling Fortis Wraps fit perfectly around the face and completely eliminate unwanted light. Designed to block penetrating light with built-in side lenses for total peripheral vision of 180 degrees. Soft rubber inserts on the arms keep the glasses from sliding off your head while maximizing comfort. A unique ventilation system at the top of the frame, increases airflow and prevents mist/fog build-up when pushing a wheelbarrow or climbing a tree to spot fish. The stylish matte black flexible lightweight frame allows them to be worn comfortably all day long.