Softly translucent, matte surface, unique color palette. The frame variants of Gira Event Opak are made from opaque plastic, a slightly translucent material. Depending on the light conditions, the colors appear to shift between lighter and darker shades, and the curved shape of the frames enhances this effect. Gira Event Opak is available in the colors amber, mint, blue, red, white, orange, and dark brown.