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 useful for nature and outdoor photographers, as well as sports shooters and photojournalists. It provides a thermal barrier, protecting your hands from cold lens surfaces in lower temperatures. This version is matte black to better blend in where desirable. Or, it can be used just for its protection value. The cover is waterproof, providing protection to your lens in wet conditions. This item is packaged with a cover for the 1.25x teleconverter that is included with the lens.