undergarment question

Hi, girls...
I'm going for my first fitting this friday and I'm supposed to bring the undergarments I will wear the day of the wedding. Is there such a thing as a comfortable thong? Where can I get one? I heard Gap Body makes pretty good ones... anywhere else?

Thanks!

Gap Body are my favorites! although I usually hate Victoria Secret's thongs, I just found that they make similar thongs to the Gap Body thongs and they are comfortbale- a bit lower rise than Gap's.

Although I wear a thong everyday, I am almost considering not wearing one on my wedding day- I'd hate to have to fish for it under a wedding dress if it goes into the unknown- know what I mean?