The LensCoat for the Sony FE 600mm f4 G has been designed to protect your lens from the bumps and scratches that can accidentally happen when out and about with your gear. The closed-cell neoprene coat is easy to put on and take off and provides a neoprene provides a thermal barrier, protecting your hands from your cold lenses when you're in low temperature conditions. This protection makes the LensCoat perfect for wildlife and outdoors photographers. It also features clear plastic windows over the main lens dials and controls meaning you can still see what you're doing when you need to change your settings etc.