AI says this: Introducing the Petrol PR415 Deca Transparent Raincover designed to fit medium-sized cameras such as the EX3 and JVC GY-HD. This rain cover is perfect for protecting your camera from rain and other harsh weather conditions during outdoor photo or video shoots. With its transparent material, you can still easily see and access your camera controls without removing the cover. This rain cover is manufactured without any warranty from the manufacturer and doesn't require any modification to fit your camera. Get your hands on this non-domestic rain cover from Petrol and protect your camera from the elements.
I say this: I used it only once and it kept my camera dry. I'm now selling all my camera gear because my back won't take it any more. This is in near-mint condition.
It attaches to the hotshoe and is lightweight.