I always wanted to do the jumpsuits and the patches, but just never had the time or money. I had actually been thinking about a run of patches that would make a nivce display, all the ships and so on. I don;t know if anyone ever did this, or even worked upt he art needed.
Each of the four characters wears a unique "signal flag" patch on his jumpsuit. Not only do the signal flags stand for the initial letter of their respective last names, but they all have other meanings in the naval code, which are somewhat significant to the characters. For example, Lowell's flag "L" means "You should stop your vessel immediately". [Barker's] "B" means "I am carrying dangerous goods or explosives".
Douglas Trumbull mentions the ski suit manufacturer by name in the DVD commentary. Helle Hansen, if memory serves, off the rack: the only mod they did was put a pouch on the front for the actors' microphones. I'd check it out but it's nap time.
This is a cool bit of trivia from IMDb:
I have a few things but I'm always looking. View attachment 737883