The present disclosure is drawn to a coated print medium, a method of preparing a print medium, and a printing system. The coated print medium can comprise a substrate and a coating applied to the substrate. The coating can comprise, by solids or dry weight, 5 wt% to 30 wt% of a polymeric binder, 20 wt% to 50 wt% of a cationic latex, 5 wt% to 15 wt% of a multivalent cationic salt, and 1 wt% to 20 wt% of a sulfonic acid- or sulfonate-containing stilbene optical brightener.