Other than what they are intended for I have never once noticed a condom making any difference what so ever despite all the various things they so they are supposed to do extra and numerous variety packs and such. All the same.
In all respect, the ribs and bumps are so small there would be VERY hard, but not impossible to notice. We have used these and she has never really notices a huge difference and when using them with a strap-on for pegging, I have never really been able to tell a difference either aside from the initial insertion, and that me also knowing thy type of condom being used.