the Mustang worksuit here in Friday Harbor on the FHFD fireboat which is a 30' open w/center console type affair. Even during the summer, they come in handy when running at 30 knots and always after dark when at speed. They are definitely a hothouse around the harbor in the summer but if I were also sailing offseason or at night in an open cockpit, I'd seriously consider one. They would take up a bit of space on most boats' hanging lockers though.