These are a full 5 mm drysuit hood with a reflective grey material that can be picked up on radar. This is an unusual one of a kind hood. This hood comes with a story. It could be true or just a story. The hood was supposedly made for the Canadian Military. There were extra's made and here they are. No promises that this is true, but it's a good story.
This is a very warm, not the most flattering hood. It fits small and tends to fit more like a medium. Fits women really well.