The black Lens Cover for the Nikon 800mm AF-S f/5.6E FL ED VR Lens from LensCoat is a 100% closed-cell neoprene coat that protects the lens from bumps and scratches. It is ideal for nature, outdoor photographers, sports shooters and photojournalists. It also provides a thermal barrier, protecting your hands from cold lenses in lower temperatures. This version comes in a matte all-black finish to better blend in where desirable. Or, it can be used just for its protection value. The cover is waterproof, providing protection in inclement weather. This item is packaged with a cover for the 1.25x teleconverter that is included with the lens.