Eyedology reading glasses convey pure class. The classic round shape grey frame suits all face shapes and sizes. This reader is fit for both women, or men and comes with a branded hard case, with a branded cleaning cloth. Materials - Frames: Polycarbonate (rubberized), Lenses: AC Lenses, Spring Hinges. AC Lenses - refers to the lenses being Acrylic material. Acrylic lenses are very strong, shatterproof and durable. The rate of visible light that can pass through the lenses is high-reaching 92%. Acrylic material for reading lenses is also more transparent than glass.