A "what to wear" thread...

So I've got my first HIM coming up.  I've been planning on doing it in a tri top and shorts. 

I've got some 2xu endurance shorts I really like.  I was going to wear one of their tops to go with, but they seem to either come in black and white. I'm worried black will be too hot and white will be completely see through.  Also the skin around my stomach is a mess from a bunch of weight loss. 

With that said, does anyone have a favorite tri top?  I've got a pearl top as well, and it's not long enough.

What about using a tri suit for a HIM or IM?  The bathroom would be more challenging, but other than that it might be kind of nice  not having to worry about garment adjustment?