Spectrum BLANKSTER Sunglasses - Black - Infrared Blankster offers the ultimate in lightweight protection and comfort with an optimized lens shape to stop harmful rays before they reach your retina. Blankster fits close to the head and is designed for speed. The gray Zeiss base lens with multi-layer infrared mirror coating is designed for extended active use, whether running, cycling or climbing. It is ideal for extended use on bright and sunny days. This lens provides visual protection from strong reflections, offers the greatest visual comfort and natural perception without color distortion.