Choosing correct condom size

[sub zero]

I was wondering if someone could help me figure out what a good condom would be to buy. Recently I've been using the regular size trojan in the blue pack but it has been slipping off inside my girlfriend.
Is there another size or brand I could try?

[Golgothas]

I believe Durex and Trojan and others have various size information listed on their websites for the various styles they offer.

[Nanz]

yea trojan do one called "magnum", which is a larger size so i figure they would have smaller ones.
Oh and pasante "trim" is more of a close fit it nearly cut off the circulation to my cock. Those bastards should label it with something that is understandable.

I have real trouble finding condoms that fit well, most break. Theres hardly any stores that do different sizes near me.

[WarWagon]

I've noticed that Durex brand seemed to be more snug than Trojans. Perhaps you want to give them a try.