Nothing is more comfortable than a plaid, flannel shirt in cold weather, especially under a leather jacket. I was able to wear one of my plaid flannel shirts so far this Winter. I do not get much use out of them but cannot toss them out of my closet.
Really, there's no better place to go SCUBA diving than the Caribbean. Breaking the Horizon, June David Gandy~ umm excuse me, I think I might need to borrow your tank, 'cause I just forgot how to breathe.