I'm a pretty bright guy - but I don't understand how a latex balaclava fastened to my suit is supposed to keep me dry.
I've dived with, I think 4 divers over the years that have had Dry Hoods.
And I can't imagine how they could be.
A wrist seal is tight on your wrist. The water stays out.
A neck seal is tight on your neck. The water stays out.
If a dry hood was as tight as a wrist seal, it might work. But the one's I've seen, aren't.
Someone enlighten me. I don't get them.