POC - Retina Big Spare Lens CLEAR AS DAY: All Zeiss lenses will have Oleophobic and Hydrophobic treatment which ensures water, dirt, oil and dust cannot stick to the surface of the lens OPTIMAL FIELD OF VIEW: Wider tint range, so it's easier to find your personal favorite lens tint based on your choice for eye comfort and aesthetics PROTECT YOUR EYES: Higher VLT on the POC specific Sonar lens provides better performance in low light conditions DURABLE AND SECURE: Thicker 1,8 mm lens throughout the range for enhanced durability and a more robust lens attachment, especially for all Iris, Retina and Retina Big COLOR FOR YOU: The Retina Big Spare Lens comes in nine different colors