The Realtree Max4 HD Lens Cover for the Sigma 100-300mm f/4 EX DG APO HSM from LensCoat wraps your lens in a 100% closed-cell neoprene coat, to protect it from bumps and scratches. This cover is ideal for nature and outdoor photographers, sports shooters, and photojournalists.
It also provides a thermal barrier, protecting your hands from cold lenses in lower temperatures. It is easy to install and remove, and leaves no residue on the lens. LensCoat covers are also waterproof, providing protection in wet or inclement conditions. This cover will help you preserve the resale value of the lens by protecting it from dust, dirt, and other contaminants.