Pretty much no one wears drawers. Some of the tri suit tops have built in breast support and some do not.

The one piece tri suits have a special set of challenges.

My friend and I did a tri on a military base. Hundreds of XX participants. One head for females--it had two doorless stalls.

Add to that the fact that many of us had a start time of 2 or more hours into the race...people who get nervous have to go...and go...and go. Of course One of the two toilets got stopped up.

So you walk into the bathrooms and there are gals doubled over on the pot with the only garment they have on down around their knees.

Bathrooms at a tri see alot of active duty of lots of people with nervous colons.

Keep in mind that if you have to go anywhere in a race, it's a semi-public event.