Hi there Edelgado, Thank you for selecting Subsequent Day Flyers for your printing demands. We've lots of cardstocks for flyers. Evidently, we do not need a waterproof content even though We now have h2o-resistant cardstock. Look at our Mailing Providers for an uncomplicated way to avoid wasting time and steer https://flyer-printing88999.jasperwiki.com/6411846/new_step_by_step_map_for_flyer_printing