I hate latex - the polyurethane condoms ( which is what Supra is) ABSOLUTELY do a better job of transmitting body heat adding much more to the warm variable in the equation:
warm+wet+moving=good
I have used both these and the Avanti (by durex) which came out first.
I have tried both in the same session to try and compare and figure out which one is better. The biggest different is that the Avanti is looser than the Trojans. I believe I prefer the Avanti. Some people, however, have said they don't like this aspect of it.
Be careful in that if you can normally pull out without having to hold the base of the condom - you may want to do so with the avanti. [I am prepared for the "Funny, I don't have that problem jokes"
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If you hate latex condoms - you will never use another after using the Avantis.
They are not stocked in as many stores, but drugstore.com has both.
the fda wants you to know that these are only supposed to be used for people with latex allergies. they haven't been tested as fully as latex against aids to scientific specs, but have been shown to protect against aids in the lab.