1. A pull-on wearable article comprising: a main portion including an outer cover, the main portion defining a front waist region having first and second longitudinal side edges, a rear waist region having first and second longitudinal side edges, and a crotch region extending between and connecting the front and rear waist regions; a first extendable side panel extending between and connecting the first longitudinal side edge of the front waist region and the first longitudinal side edge of the rear waist region and a second extendable side panel extending between and connecting the second longitudinal side edge of the front waist region and the second longitudinal edge of the rear waist region to form the article in a closed waist configuration, at least a portion of each side panel being extendable between a relaxed state and an extended state; and an informational image disposed entirely in the first side panel or the second side panel, wherein the informational image is legible when the first and second side panels are substantially in the relaxed state.