The black Cover for Canon RF 24-70mm f/2.8L IS from LensCoat protects your lens from scrapes, bumps, and moisture. This cover is made from neoprene and acts as a thermal barrier, protecting your hands from extreme temperatures. It also breaks up the shape your lens, helping to hide it from wildlife. Included with this cover is an optional zoom sleeve, which covers the section of your lens that is exposed when your lens is zoomed.