The Eyres Razor Edge 702 prescription safety glasses, is medium sized.  The Razor Edge 702 is a sunglasses style  safety glasses frame.  Positive seal foam cushion on the inside of the frame on the shiny black colour. These prescription safety glasses not only look cool, they are comfortable to wear for long periods of time. The foam seal is only on the black colour not the crystal black. This is the black coloured frame.