Hi there Edelgado, Thanks for selecting Future Day Flyers in your printing needs. We now have a wide variety of cardstocks for flyers. Apparently, we don't have a waterproof material even though Now we have water-resistant cardstock. Double parallel fold – this fold option would make four panels by folding https://cruzfbqdp.timeblog.net/67955625/how-much-you-need-to-expect-you-ll-pay-for-a-good-flyer-printing