LensCoat® RF 600 telephoto lens cover offers your valuable equipment some protection from scrapes and bumps, preserving its resale value. It also help break up the shape of your lens, making it less noticeable to wildlife. The neoprene LensCoat also acts as a thermal barrier making your lens more comfortable to handle in hot and cold tempertures. The LensCoat® RF 600 features a clear plastic windows over the auto focus and Image Stabilization controls.