You just ask him or her. Trust me, they have seen more men than they want to and nothing is going to surprise them. I would be surprised if they know. It has been quite a while since I looked at condoms, but I don't know that they have measurements on the box. It is probably going to be trial and error.
Try Each size... See Which Size Fits best.
the size is 23....i dont know
i dont know do i
i dont know
I dont know but i know you have tiny feet!
i want them in a size 8 . but i dont know . x
Most condoms are very stretchy and will adjust to your size. Try blowing up a condom, they can get as big as a balloon. If the condom is too snug or too loose, try a different kind.
blah blah blah! dont know dont care. blah blah blah! dont know dont care. blah blah blah! dont know dont care.
i dont know ; i forgot
i dont know but i need to..
I dont know but maybe by the size
i dont know.... probably big