Diva site said it was made of silicone...
Keeper is rubber/latex.

I don't think I have had problems with latex/rubber or but your body changes and can develop issues, so...play it safe.

Oh, and no matter what the tip length...You can only insert it as far as you pinched fingers will allow so I guess I should not be too overly concerned about not getting it out once inserted...right? oh bloody hell its stuck! lol