Draconis said:
Remember that the average condom's made for someone who's girth is about 4.25"-5.25" (given a 4.75 average). Magnums may be suitable for ?5.5"? give or take.
Pretty much right on. My cock is a little over 5.5" around at it's smallest point, right behind the head, and 6"+ at the base.
Base thickness, to me, seems to be the most important factor, because that's where the "reinforced" part of the condom is and where it clamps down the tightest. Normal condoms can stretch to "fit" me, but they clamp down so tight I can't achieve orgasm. Magnums are a little snug, but I was under the impression that's how condoms are SUPPOSED to be. Magnum XLs fit perfectly and feel the best when I'm 100% hard, but they get a little loose once I start to deflate post-orgasm (which, really, is only a concern if I feel like just lying there for a bit).
I use Magnums 75-90% of the time, and Magnum XLs the rest. I will never, ever, ever use a "regular" size condom again. Too painful.