Rain cover protects camera and lens from rain, snow, salt spray, sand Right hand side access adjustable/fold out arm sleeve. Single access. No dedicated eyepiece required, easy access to camera controls. Fits 300mm 400mm 500mm 600mm 800mm long primes, with hood on. Used once or twice, like new. Great for wildlife photography. In my opinion, the easiest and most versatile rain cover to use. Made in USA. See reviews at Amazon.