Originally Posted by codprawn
What about the floatation suits you can buy for fishing? It seems to me cold is a far bigger killer than drowning. Some of the Norwegian and Finish RIB outfits issue them to their passengers instead of lifejackets.
I know they don't have the same amount of buoyency as a proper lifejacket but liefejackets can put you into strange positions when worn with drysuits or survival suits etc.
Trouble is, it's the balancing act between safety and having something comfortable / workable that is not so bulky it won't be worn.
I led a project a few years ago looking at fishing industry lifejackets - a lot of the reasons for poor uptake of jackets is usability when hauling pots, etc.
Flotation suits are OK for keeping you afloat, but not terribly good for working in. Drysuits will only put you in an odd position with a lifejacket if you haven't expelled the air properly beforehand (from the suit, not the jacket).