Hello there Edelgado, Thanks for selecting Subsequent Day Flyers on your printing wants. Now we have lots of cardstocks for flyers. Apparently, we do not have a watertight product though We now have drinking water-resistant cardstock. We have now over a dozen paper dimensions in your case to choose from, https://damienduivh.dgbloggers.com/32473258/everything-about-flyer-printing