The Realtree Max4 TravelCoat for the Canon 500mm f/4 IS II from LensCoat is made from shock-absorbing, closed-cell neoprene and custom tailored to fit your lens with its hood mounted in the reverse position. Designed to protect your lens against bumps, scratches, and abrasions when not in use, it eliminates the need for a bulky lens case and creates more room in your camera bag. The coat simply slides over the lens, and closes with a secure hook-and-loop fastener. The Realtree Max4 TravelCoat helps break up the shape of your lens, useful when you're photographing wildlife. Use with the appropriate optional Hoodie for complete protection.