My husband has done our last couple of cave diving trips in a wetsuit. If you're in the water for three hours, you pretty much HAVE to pee at some point. Despite simple rinsing, his wetsuit becomes so malodorous that it honestly makes me gag -- and I work in an emergency room, so bad smells are something I just have to live with. Washing with detergent or fabric softener gets rid of the smell, or at least makes it so that the wetsuit IN THE TRUNK doesn't make me want to open the car door and fall out on the highway.