I'm getting more and more comfortable with training and the prospect of doing my first two trithalons this summer. But, I still feel a little uncomfortable about hydration. I am notorious for sweating a lot, and if the July heat in NYC is bad, then I'll be a bit more worried.

I won't be using an aero setup on my bike, and thus will just use the bottles in the cages on the tube. But, I'm wondering if people are allowed to wear a camelback during the bike to make this easier?

And during the run, are you allowed to use a fuel belt to double as your race belt (i.e. the fuel belts which have mini-water bottles attached, and possibly some room for gels)?

Or, am I over thinking this? Thanks.