Pull On closure Seismic Activity is Detected! Let your little one travel back to the age of dinosaurs with a unique Jurassic World pajama that is uniquely designed and fun to wear. Imaginations run wild when wearing this awesome Jurassic World pajama for boys. 2 piece set features a Short sleeve top with the verbiage, ??Seismic Activity Detected?? Printed on front of shirt. Pajama top also features a unique flap down pocket and all your favorite dinosaurs. Pajama Shorts feature an elastic waistband for an adjustable fit and a Jurassic world Leg stamp for that extra sense of cool & style. Easy Care: Machine washable | Tumble dry low | No Iron | Non chlorine bleach Sizes ?C This Jurassic World 2 Piece Pajama is available in boys sizes, 4/5, 6/7, 8, 10/12 Officially Licensed ?C Jurassic World Pajamas for Boys.