These Lego Batman brand cotton pajamas for boys come in a 2-pack set. Both pair of pajamas feature Batman and Robin, and one pair is printed with UP ALL NIGHT. Both pair of pajamas have full sleeved tops with pajama pants bottoms. The pajama top has a roomy neckline with cuffed sleeves. The pajama pants have an elastic waistline with cuffed leg bottoms. The 100% cotton knit fabric is machine washable and comfortable to wear. These pajamas are designed to fit snug.