The 'Clearwater Black Silicone Mask' With Mirror Lens offers the ultimate in vision enhancement. Its black silicone skirts eliminate peripheral refracted light, allowing your pupils to open further and accept more light emanating from your immediate field of vision. The end result is your eyes can register greater clarity of depth, detail and colour. This outstanding value mask comes with a dry tip and purge snorkel, combining to create the one of the best value mask and snorkel sets. WITH MIRROR LENS.