One piece tri suit

Mine is the NAVY one...suprised?

 No problems with the thickness of the suit.  Didn't really think of it as thick, but then again it was my first and only one that I have.  Nothing to compare it to.  I like it.

I race in the Orca one piece suit, its very comfortable and the fibers are coated with silicone to shed water from the outside, but allow sweat to get through from the inside.  No disrespect meant to the previous posters, but with regard to the aforementioned issues with one pieces, read on:

1. To pee, all you need to do is lift up the leg.
2. To make adjustments to the twig and berries, it can be done from the outside.
3. I've never had body markings bleed upon my suit.

Additionally, it eliminates the need for a shirt (required in most triathlons) which you will need to put on after the swim if you're not already wearing one (time savings in T1).   

Maybe it's 'cause I race in the sub-tropics, but I've never had a race that required a shirt, as a matter of fact, you were in the minority (among men) if you wore one. Just hoping it catches on with the females.

I learned this as I struggled with my shirt for nearly a minute in my first tri.

Bear, you are in the wrong sport!!!!! Try Ultimate Frisbee. Those people are all about their nudity!

They even play 'naked points' from time to time.

Sorry, all I've got is mental pictures. Try going to a local "Hat" tournament's day two sometime. The beer bracket (ie loser's bracket) seems to often be drunk and naked. Of course, these are coed events, so you'll have to deal with seeing some, as Steve puts it, jewels in order to see the nudie girls.