Speedo is only making 2 kinds of nylon suits now. The double layered suit--meaning a suit with 2 layers of nylon all around. If they reversed the inner nylon, it would slide against the outer layer and would be great (like the old Ocean Champion brand suits did). They also make a double layer nylon mesh suit. Many of these suits (made to be worn over another suit in a size or 2 larger to create drag in the water when practice swimming) do have the inner layer sliding over the outer one. These aren't as soft and silky as a regular nylon suit, but I'll bet I could jerk you off in one and you'd like it.
Aussiebum is the only manufacturer making and marketing decent 100% nylon suits today. They are really hot and actually designed to be slightly baggy to not smash your cock in and let it move a little--preferably in the upward position inside the suit. Unfortunately on most of them, the front panel doesn't slide against the rear like the old nylon Speedos for j/o purposes. However, putting an older style nylon suit inside that Aussiebum and it slides great. They really use pretty good nylon tricot for their suits.
Truwest was making (and might still be) a polyester type suit for water polo. I bought one on ebay and it's amazing. Not only does the entire front of the suit rub against the back, just about any suit you put over it also slides. More layers sliding = better feel on my cock and bigger loads shot into the top layer of nylon. That's why when I see some of those water polo players with a nylon suit over one of those gold suits, I know how easy it would be to just go up and slide the front and back up and down to make them shoot into their suits. Well in my dreams it is, anyway.
So for me it's not just about wearing them and seeing how hot they look, there are practical considerations like ejaculation possibilities! I can make just about any suit slide on my (or your) cock with my evil nylon ways. Finding a suit that makes it easy to do while you are wearing it is more of a challenge. Obviously wet suits don't work at all--dryer the better. In fact, placing some of your nylon stuff in a clothes dryer prior to a j/o session makes a big difference with slideability. (sorry spellcheck).
So for me, anyway, it's not about their age (older / experienced usually wins over younger-all about ME / inexperienced) their body (perfect bodies are very intimidating if you do find one)--it's more about what they are wearing, how much they enjoy the nylon, and how willing they are to try new things with and in the nylon. Falling asleep with cum in each other's nylon is hot. Wearing another guy's crunchy nylon whatevers after is hot. Well, if you are reading this, I am preaching to the choir so just enjoy the pics.
Why yes, this is my dick head sticking out through 2 layers of silky nylon in case you were wondering.
Yeah, I know, evil lycra--but these Texas guys are having so much fun, I could still manage to ejaculate all of them without too much trouble.
I've done this and besides the obvious...the smell of his crotch through some possibly chlorine scented nylon Speedos is awesome.
This is a case of a really easy jerk off combo. His polyester under checkered suit would easily be filled with cum by sliding that double nylon Speedo mesh suit over it. Can't believe there are some guys who are so oblivious to the possibilities while just standing there in 2 suits.