JetJester wrote:
Do the shorts/jacket combination that you use hold water? One of the ideas behind a wetsuit is that they hold a small layer of water that is heated by your body and acts like insulation. If this water is constantly being replaced (run out the leg holes then in through the top when a wave comes) do you think that you are cooler as you are not using a single piece suit?
The shorts and vest do hold water the same as a wetsuit. They're all made of neoprene, but I would agree that having two pieces (vest and shorts) as opposed to a single shorty suit (which would cover the same area of my body) is a cooler option. I really like the flexibility of being able to add and take away layers mid sail. A shorty suit wouldn't let me lose the top. That's a great solution for me.
It think that the vest, near my waist, may experience the "replacement of water" that you mention, where a full suit, or 1 piece shorty suit may not have that, but I haven't really thought of the science behind it. I just like the fact that I can throw the top on, or off, without much difficulty.
My full wetsuit is QUITE a bit warmer then the vest and shorts combo. For most of my sailing, I find the shorts to be mandatory (in Lake Ontario) as they have yet to make me too warm, and the vest is always with me. On occasion I'll bring my neoprene socks with me if the water is very cold, because sometimes early in the season my toes got cold, and I had a tough time getting them warm.
Hope that helps.