The black Lens Cover for the Tamron 70-200mm f/2.8 Di LD (IF) Macro Lens from LenCoat 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 low temperatures. It features a clear plastic window that permits you to read the distance scale on the lens. The cover is waterproof, providing protection to your lens in wet conditions. This version is matte black to better blend in where desirable. Or, it can be used just for its protection value.