On previous Sony machines i have had slide on plastic hoods with velcroed pop up flaps. They don't make it for my current model PMW200, so i tried this.
As it's a generic model seemingly made of card or plastic covered in stitched with hard wearing material. It's not the most secure and is held on by 2 elastic straps. Just carrying the camera about i have to adjust it once i need it.
That said, i can also whip it on and off and drop it in the bag. I flatten it in and it springs back after.
It does the job and I'm glad i have it. I'll probably wear it out and would get another unless i found something better