Dabuyu Owl Children's Pajamas Material not flame resistant. For fire safety reasons, pajamas should fit snugly. Tagless label to protect your childs delicate skin. Size 18-24 months: weight 27-30 lbs, height 31-33; 3-4 years: weight 33-40 lbs, height 36-42; 6-7 years: weight 46-58 lbs, height 45-51. Material: Cotton. Top has stitched design for higher quality. Washing Instructions: Machine wash cold, inside out. Tumble dry low. Low iron if needed.