Lightweight, soft, breathable, smooth, elastic, not easy to shrink or ball;/Elastic waist with an adjustable drawstring, for the perfect fit;/Two side pockets on the pajama pants, big enough, convenient for you to carry important things;/Vibrant Color & Bold Graphic Print Designs./Permanent, No-Fade inks to keep colors looking bright./Strong Flat-lock stitching for long lasting durability./Breathable fabric that keeps comfort levels right where they should be./No harmful flame retardant chemicals added.