Hi there Edelgado, Thanks for choosing Upcoming Day Flyers to your printing needs. We now have numerous types of cardstocks for flyers. Apparently, we do not need a water-proof product even though We now have h2o-resistant cardstock. We've got about a dozen paper dimensions for yourself from which to choose, https://highkeysocial.com/story4237772/5-tips-about-flyer-printing-you-can-use-today