Hi
@rnln
Another option is to go with a hooded vest rather than a hood. I have a 5/3 mm hooded vest and wear it with my 3, 5, or 7 mm full suit depending on the water temp. I take it with me on all dives, even if I don't expect to need it. I can always add it if I'm a bit colder than I would have thought. I I find that the hooded vest adds considerably more warmth than a hood. Besides having another 3 mm on your trunk, I believe it helps with any water intrusion.from around the neck or the zipper