Nickelodeon SpongeBob SquarePants Baby Bodysuit Dress Up Outfit 60% Cotton/40% Polyester Machine wash warm, tumble dry low Size: Newborn, Height: 17.5-21 Inches, Weight: 5.5-7.5 Pounds Size: 0-3 Months, Height: 21.5-23 Inches, Weight: 8-12 Pounds Size: 3-6 Months, Height: 23.5-26 Inches, Weight: 12.5-16 Pounds Size: 6-9 Months, Height: 26.5-27.5 Inches, Weight: 16.5-19 Pounds Size: 12 Months, Height: 28-29.5 Inches, Weight: 19.5-22 Pounds