Funtrunk clothing is made from 190 gsm 100% pure cotton. Machine washable comes in 5 different sizes from 0-3months, 3-6months, 6-12months, 12-18 months, 18-24 months and ok to pop in the dryer at low temp. Our only request is to wash and iron our rompers inside out. Personalize it with the birth date, first name, last name or both and do make them feel your extra care for them!!!