pj masks boys' pj masks pajamas size 5 pj masks boys pj masks pajamas. this adorable pj masks pajama set is just what your little hero needs to fly off to dreamland! featuring superheroes catboy, owlette and gekko, these fun pjs are perfect for all fans of the popular disney show. this full length ensemble comes with a cool pattern of the heroes' masks on the sleeves and bottoms, as well as super comfy elasticated waistband and cuffs on the arms and legs. made of an ultra-soft cotton blend, these snug fit pajamas are a sure hit.