Well, first off, I wouldn't go over the side permanently because I would have my safety harness on. This is from my sailing days, so not sure how it applies to motorboats in this day and age. If you were on deck for any reason at night, you had to wear your PFD, to which were clipped a whistle and lifejacket light, in addition to your safety harness. I always had a good knife strapped to my person as well. You have to strike a balance between having nothing at all and being so overloaded that you can’t do your job and you become a menace to yourself and others. My gut instinct, without ever having worn this product, is that it is far into the “overloaded” category as something you would want to wear for hours on end.